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Sets
Classic
Supplemental
2x2 Bricks

420-4 LEGO 2x2 Bricks

Name: LEGO 2x2 Bricks
Brand: LEGO
SKU: 420-4
Availability: InStock
Rating: 4.60 (16 reviews)

Images 1

LEGO 420 2x2 Bricks is a vintage Classic set from 1966 valued at $20 for new and sealed sets, up 3930% from an original retail price of $0.50. Annual appreciation has averaged 2.93% since release. On the used market, values range from $16 to $29 based on condition.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set 2x2 Bricks since June 2016. High accuracy

LEGO 420-4 2x2 Bricks is a Classic Supplemental set released in 1966, containing 33 pieces. Issued as a LEGO System supplemental parts pack, it consists of thirty-three Brick 2 x 2 without inside supports (part 3003old). The set was produced in single-color variants, with packs available in black, blue, red, trans-clear, white, or yellow.

A new and sealed 2x2 Bricks is currently valued at around $20, with annual growth of approximately 3%, which is lower than other Supplemental sets. The average used price is $17 for those in good overall condition. Based on current trends, this set could be valued near $21 within the next year.

All regions

All regions 1
United States 1

For Sale (New/Sealed)

(US) Brick 2 x 2 x 2 Gray, Red, Black Astromech Droid Pattern, Star Wars inv.420

BrickEconomy Choice

$19.99

Sets in Classic / Supplemental


	471 Tiles Theme / Subtheme Classic / Supplemental Year 1966 Pieces 52 Availability Retired Buy this set at Bricklink	Retail $0.50 Value $28.61 Growth +5622.0% Annual growth 4.6% I own this set I want this set

	423-4 Curved and Round Bricks Theme / Subtheme Classic / Supplemental Year 1966 Pieces 50 Availability Retired Buy this set at Bricklink	Retail $0.50 Value $46.39 Growth +9178.0% Annual growth 5.5% I own this set I want this set

	434 50 Lettered Bricks Theme / Subtheme Classic / Supplemental Year 1966 Pieces 50 Availability Retired Buy this set at Bricklink	Retail $0.50 Value $53.29 Growth +10558.0% Annual growth 6.9% I own this set I want this set

	437 50 Numbered Bricks Theme / Subtheme Classic / Supplemental Year 1966 Pieces 50 Availability Retired Buy this set at Bricklink	Retail $0.50 I own this set I want this set

	421 1x2 Bricks Theme / Subtheme Classic / Supplemental Year 1966 Pieces 44 Availability Retired Buy this set at eBay	Retail $0.50 Value $20.63 Growth +4026.0% Annual growth 3.3% I own this set I want this set

	487-2 1x1 Bricks with Numbers Theme / Subtheme Classic / Supplemental Year 1966 Pieces 44 Availability Retired Buy this set at eBay	Retail $0.50 Value $58.16 Growth +11532.0% Annual growth 5.4% I own this set I want this set

	488 1x1 Bricks with Letters Theme / Subtheme Classic / Supplemental Year 1966 Pieces 44 Availability Retired Buy this set at Bricklink	Retail $0.50 Value $108.93 Growth +21686.0% Annual growth 5.8% I own this set I want this set

	470 1x1, 1x2, 2x2, 2x3, 2x4 Plates Theme / Subtheme Classic / Supplemental Year 1966 Pieces 39 Availability Retired Buy this set at Bricklink	Retail $0.50 Value $50.00 Growth +9900.0% Annual growth 5.1% I own this set I want this set

	481-5 Slopes Regular, Double, Angle, Valley and Corner Red Theme / Subtheme Classic / Supplemental Year 1966 Pieces 34 Availability Retired Buy this set at Bricklink	Retail $0.50 Value $15.75 Growth +3050.0% Annual growth 4.1% I own this set I want this set

	481-6 Slopes Regular, Double, Angle, Valley and Corner Blue Theme / Subtheme Classic / Supplemental Year 1966 Pieces 34 Availability Retired Buy this set at Bricklink	Retail $0.50 Value $23.94 Growth +4688.0% Annual growth 5.4% I own this set I want this set

	422 1x1, 1x2, 1x4, 1x6, 1x8 Bricks Theme / Subtheme Classic / Supplemental Year 1966 Pieces 28 Availability Retired Buy this set at Bricklink	Retail $0.50 Value $20.96 Growth +4092.0% Annual growth 5.2% I own this set I want this set

	423-3 Curved and Round Bricks Theme / Subtheme Classic / Supplemental Year 1966 Pieces 28 Availability Retired Buy this set at Bricklink	Retail $0.50 Value $30.55 Growth +6010.0% Annual growth 5.9% I own this set I want this set

	419-3 2x3 Bricks Theme / Subtheme Classic / Supplemental Year 1966 Pieces 25 Availability Retired Buy this set at Bricklink	Retail $0.50 Value $17.58 Growth +3416.0% Annual growth 3.0% I own this set I want this set

	480-6 Slopes and Slopes Double 2x4 Red Theme / Subtheme Classic / Supplemental Year 1966 Pieces 23 Availability Retired Buy this set at Bricklink	Retail $0.50 Value $25.00 Growth +4900.0% Annual growth 2.9% I own this set I want this set

	480-7 Slopes and Sloped Double 2x4 Blue Theme / Subtheme Classic / Supplemental Year 1966 Pieces 23 Availability Retired Buy this set at Bricklink	Retail $0.50 Value $25.39 Growth +4978.0% Annual growth 5.5% I own this set I want this set

	482-3 Slopes and Slopes Double 2x2 Red Theme / Subtheme Classic / Supplemental Year 1966 Pieces 22 Availability Retired Buy this set at Bricklink	Retail $0.50 I own this set I want this set

	482-4 Slopes and Slopes Double 2x2 Blue Theme / Subtheme Classic / Supplemental Year 1966 Pieces 22 Availability Retired Buy this set at Bricklink	Retail $0.50 Value $20.25 Growth +3950.0% Annual growth 5.1% I own this set I want this set

	418-3 2x4 Bricks Theme / Subtheme Classic / Supplemental Year 1966 Pieces 21 Availability Retired Buy this set at Bricklink	Retail $0.50 Value $41.42 Growth +8184.0% Annual growth 6.4% I own this set I want this set

	481-3 Slopes and Slopes Double 2x3 & 2x1 Red Theme / Subtheme Classic / Supplemental Year 1966 Pieces 21 Availability Retired Buy this set at Bricklink	Retail $0.50 Value $29.15 Growth +5730.0% Annual growth 5.8% I own this set I want this set

	481-4 Slopes and Slopes Double 2x3 & 2x1 Blue Theme / Subtheme Classic / Supplemental Year 1966 Pieces 21 Availability Retired Buy this set at Bricklink	Retail $0.50 Value $20.25 Growth +3950.0% Annual growth 5.1% I own this set I want this set

	420-3 2x2 Bricks Theme / Subtheme Classic / Supplemental Year 1966 Pieces 20 Availability Retired Buy this set at eBay	Retail $0.50 Value $17.86 Growth +3472.0% Annual growth 4.9% I own this set I want this set

	421-2 2 Eights 2 Sixes 2 Fours 8 Twos 6 Ones Theme / Subtheme Classic / Supplemental Year 1966 Pieces 20 Availability Retired Buy this set at Bricklink	Retail $0.50 I own this set I want this set

	459 1x1x1 Windows Red or White Theme / Subtheme Classic / Supplemental Year 1966 Pieces 20 Availability Retired Buy this set at Bricklink	Retail $0.50 I own this set I want this set

	483-4 Angle Valley and Corner Slopes Red Theme / Subtheme Classic / Supplemental Year 1966 Pieces 20 Availability Retired Buy this set at Bricklink	Retail $0.50 Value $25.85 Growth +5070.0% Annual growth 5.6% I own this set I want this set

	483-5 Angle Valley and Corner Slopes Blue Theme / Subtheme Classic / Supplemental Year 1966 Pieces 20 Availability Retired Buy this set at Bricklink	Retail $0.50 I own this set I want this set

My Collection

I own this set

I want this set

Set Details

Set number

420-4

Name

2x2 Bricks

Theme

Classic

Subtheme

Supplemental

Year

1966

Availability

Retired

Pieces

33 (PPP $0.02)

Set Pricing

Retail price

$0.50

New/Sealed

Value

$20.15

Growth

+3930.00%

Annual growth

+2.93%

90-day change

1.19%

Used

Value

$16.72

Range

$16.04 - $28.56

Quick Buy

eBay

Buy

Lowest price

$19.99

*Listings are for new/sealed sets.

Set Predictions

New/Sealed

Today's value

$20.15

1 year forecast

$20.74+2.93%

5 year forecast

$23.07+14.51%

$22

$24

420-4 2x2 Bricks is projected to be valued between $22 - $24 within five years.

Insights

Released in the early System era and now retired, 2x2 Bricks (set 420) includes the early 2x2 brick variants prized by vintage collectors, and sealed copies are scarce from its limited-distribution 1960s run, but thin trading volume and color fragmentation make values more volatile and suited to patient buyers.

Set Facts

This was a parts set branded under LEGO System. It iwas intended to expand basic brick inventories for use with contemporaneous LEGO System sets.

Regional Retail Prices

United States

$0.50

United Kingdom

£1.95

2x2 Bricks Reviews

16 ratings

4.6

Collectors

Investors

Subtheme Analysis

Classic / Supplemental

Sets

140

Years

1960 - 1971

Annual growth

+5.44% (this set +2.93%)

This set's annual growth (CAGR) vs. subtheme

Community Stats

2x2 Bricks currently ranks #46 out of the top most owned sets in Classic Supplemental.

#1Lighting Bricks with Color Filters

#2Gray Baseplate

#3Small Wheels with Axles

#412 Doors and 5 Hinges

#5Large Wheels with Axles

#462x2 Bricks

#476 Street Lamps with Curved Top

#48Lighting Device Pack

About Classic Supplemental

Starting in the 1950s LEGO began individual parts sales, a practice that began with the Ferguson Tracktor in 1951. LEGO would supply dealers with wooden parts boxes and refill packs. These individual part sales would continue, at least in some markets, into the late 1950’s.

Supplemental consists of 140 sets that ran from 1960 to 1971. As of today, 890-2 Lockable Storage Box is the most valuable Supplemental set with an estimated new/factory sealed value of $435.

Set Pricing Models

BrickEconomy uses a number of methods to determine the value of a set.

New/Sealed

Machine Learning/AI Model

Value (today)

$20.15

Value (in a year)

$20.74

Value (in 2 years)

$21.33

Accuracy

0.820000 High

Statistical Model

Value (today)

$22.22

Value (in a year)

(Possible plateau)

Value (in two years)

(Possible plateau)

Accuracy

0.217043 Very low

Used

Machine Learning/AI Model

Value (today)

$16.72

Value (low range)

$16.04

Value (high range)

$28.56

Accuracy

0.765000 High

To learn more about how we calculate pricing and forecasting, check out our article on BrickEconomy’s Approach to LEGO Pricing and Future Value Predictions.

Region · United States (USD)

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