System i Leg consists of 128 sets that ran from 1955 to 1959. Most sets were released in 1958 which accounted for 47 sets. It is comprised of 5 subthemes with the most sets in Supplemental, consisting of 68 sets. As of today, the average annual growth of sets in System i Leg is approximately 6.4% per year.
Most valuable LEGO System i Leg set
1308 Fire Station $5,546.28
Highest growth System i Leg set
1261-2 1:87 VW Beetle +164324.71%
Largest LEGO System i Leg set
700-0 Town Plan System 264 pieces
Most owned System i Leg set
222-2 1x1 Bricks
System i Leg, which translates to System of Play, was the natural progress of LEGO Mursten and is the foundation of L:EGO sets today. Designed by Godtfred Kirk Christiansen who organized the existing LEGO Mursten sets and modeled new designs around a single, common theme - a townscape or street scene. After nearly a year of development the result was the LEGO Mursten System i Leg (System of Play). The System i Leg was unveiled at the Nürnburg Toy Fair in February 1955. The original Automatic Binding Bricks sets and then LEGO Mursten sets were continued to be manufactured under the System i Leg theme.

The theme originally consisted of the existing 700 series LEGO Mursten sets and several new HO scale accessories but over the next several years the system was greatly expanded with both new building sets and many HO scale accessory sets. The system allowed children to not only to build architectural models, which had always been featured in LEGO catalogs, but added play value with a completely new series of cars, trucks, and street signs.
Theme / Subtheme System i Leg / Basic Set
Year 1959
Pieces 22
Availability Retired
LEGO Volkswagen Kit
Theme / Subtheme System i Leg / Supplemental
Year 1959
Pieces 21
Availability Retired
281 LEGO 1x2 and 3x2 Red Sloping Bricks
Retail $0.50
Value $27.51
Growth  +5402.0%
Annual growth 5.2%
Theme / Subtheme System i Leg / Supplemental
Year 1959
Pieces 21
Availability Retired
281-2 LEGO 1x2 and 3x2 Blue Sloping Bricks
Retail $0.50
Theme / Subtheme System i Leg / Supplemental
Year 1959
Pieces 21
Availability Retired
282 LEGO 2x2 Sloping Roof Bricks Red
Retail $0.50
Value $18.00
Growth  +3500.0%
Annual growth 4.6%
Theme / Subtheme System i Leg / Supplemental
Year 1959
Pieces 21
Availability Retired
282-2 LEGO 2x2 Blue Sloping Roof Bricks
Retail $0.50
Theme / Subtheme System i Leg / Supplemental
Year 1959
Pieces 14
Availability Retired
280 LEGO Red Sloping Roof Bricks
Retail $0.50
Value $47.50
Growth  +9400.0%
Annual growth 6.1%
Theme / Subtheme System i Leg / Supplemental
Year 1959
Pieces 14
Availability Retired
280-2 LEGO Blue Sloping Roof Bricks
Retail $0.50
Theme / Subtheme System i Leg / Town Plan
Year 1959
Availability Retired
200-4 LEGO Town Plan Board
Retail $6.50
Value $750.41
Growth  +11444.8%
Annual growth 7.6%
Theme / Subtheme System i Leg / Town Plan
Year 1958
Pieces 149
Availability Retired
309-2 LEGO Church
Retail $4.25
Value $1,008.03
Growth  +23618.4%
Annual growth 8.6%
Theme / Subtheme System i Leg / Town Plan
Year 1958
Pieces 111
Availability Retired
308-3 LEGO Fire Station
Retail $4.75
Theme / Subtheme System i Leg / Town Plan
Year 1958
Pieces 98
Availability Retired
310-5 LEGO ESSO Filling Station
Retail $3.50
Value $2,080.23
Growth  +59335.1%
Annual growth 10.2%
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 62
Availability Retired
222-2 LEGO 1x1 Bricks
Retail $0.50
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 62
Availability Retired
223-2 LEGO 1x1 Round Bricks
Retail $0.50
Value $50.44
Growth  +9988.0%
Annual growth 6.1%
Theme / Subtheme System i Leg / Town Plan
Year 1958
Pieces 51
Availability Retired
307-2 LEGO VW Auto Showroom
Retail $4.25
Value $2,439.63
Growth  +57303.1%
Annual growth 10.1%
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 50
Availability Retired
234 LEGO Letter Bricks
Retail $0.50
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 45
Availability Retired
221-2 LEGO 1x2 Bricks
Retail $0.50
Value $12.41
Growth  +2382.0%
Annual growth 3.9%
Theme / Subtheme System i Leg / Town Plan
Year 1958
Pieces 45
Availability Retired
306-2 LEGO VW Garage
Retail $5.25
Value $685.21
Growth  +12951.6%
Annual growth 7.7%
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 33
Availability Retired
220 LEGO 2x2 Bricks
Retail $0.50
Value $28.54
Growth  +5608.0%
Annual growth 5.2%
Theme / Subtheme System i Leg / Town Plan
Year 1958
Pieces 30
Availability Retired
210-2 LEGO Small Store Set
Retail $2.50
Value $722.85
Growth  +28814.0%
Annual growth 9.0%
Theme / Subtheme System i Leg / Town Plan
Year 1958
Pieces 21
Availability Retired
212 LEGO Small House Left Set
Retail $2.25
Value $346.17
Growth  +15285.3%
Annual growth 7.9%
Theme / Subtheme System i Leg / Town Plan
Year 1958
Pieces 21
Availability Retired
213-2 LEGO Small House Right Set
Retail $2.25
Value $129.40
Growth  +5651.1%
Annual growth 6.3%
Theme / Subtheme System i Leg / Town Plan
Year 1958
Pieces 20
Availability Retired
211-2 LEGO Small House Set
Retail $2.50
Value $703.63
Growth  +28045.2%
Annual growth 8.9%
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 20
Availability Retired
224-3 LEGO 2x2 Curved Bricks
Retail $0.50
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 16
Availability Retired
232-2 LEGO 16 Road Signs
Retail $0.50
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 15
Availability Retired
219 LEGO 2x3 Bricks
Retail $0.50
Value $9.27
Growth  +1754.0%
Annual growth 3.4%
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 13
Availability Retired
218-2 LEGO 2x4 Bricks
Retail $0.50
Value $8.77
Growth  +1654.0%
Annual growth 3.3%
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 10
Availability Retired
214-2 LEGO Red Windows and Doors
Retail $0.50
Value $79.63
Growth  +15826.0%
Annual growth 6.9%
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 8
Availability Retired
214-3 LEGO White Windows and Doors
Retail $0.50
Value $107.71
Growth  +21442.0%
Annual growth 7.4%
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 8
Availability Retired
226 LEGO 8 Named Beams
Retail $0.50
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 8
Availability Retired
229 LEGO 6x8 & 2x8 Plates
Retail $0.50
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 6
Availability Retired
215-2 LEGO 2x8 Bricks
Retail $0.50
Value $16.79
Growth  +3258.0%
Annual growth 4.4%
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 6
Availability Retired
230-2 LEGO Six Trees and Bushes
Retail $0.50
Value $54.57
Growth  +10814.0%
Annual growth 6.3%
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 6
Availability Retired
242 LEGO International Flags
Retail $0.50
Theme / Subtheme System i Leg / Town Plan
Year 1958
Pieces 6
Availability Retired
271-2 LEGO Traffic Police Set
Retail $0.95
Value $323.51
Growth  +33953.7%
Annual growth 9.2%
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 5
Availability Retired
216 LEGO 2x10 Bricks
Retail $0.50
Value $44.88
Growth  +8876.0%
Annual growth 5.9%
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 5
Availability Retired
217-2 LEGO 4x4 Corner Bricks
Retail $0.50
Value $39.70
Growth  +7840.0%
Annual growth 5.7%
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 5
Availability Retired
227 LEGO 4x8 Curved & 2x8 Plates
Retail $0.50
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 5
Availability Retired
228 LEGO 4x8 & 2x8 Plates
Retail $0.50
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 5
Availability Retired
242-2 LEGO 5 Danish Flags
Retail $0.50
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 4
Availability Retired
233 LEGO Light Masts
Retail $0.50
Value $85.51
Growth  +17002.0%
Annual growth 7.0%
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 3
Availability Retired
235 LEGO Garage Plate and Door White Base and Door Frame
Value $78.33
Theme / Subtheme System i Leg / Supplemental
Year 1958
Pieces 3
Availability Retired
245 LEGO Lighting Device Pack
Retail $1.75
Value $20.00
Growth  +1042.9%
Annual growth 3.8%
Theme / Subtheme System i Leg / Basic Set
Year 1958
Pieces 2
Availability Retired
LEGO Bricks Box
Theme / Subtheme System i Leg / HO 1:87 Vehicles
Year 1958
Pieces 1
Availability Retired
1261-2 LEGO 1:87 VW Beetle
Retail $0.85
Value $1,397.61
Growth  +164324.7%
Annual growth 11.6%
Theme / Subtheme System i Leg / HO 1:87 Vehicles
Year 1958
Pieces 1
Availability Retired
260-2 LEGO 1:87 VW Beetle
Retail $0.85
Theme / Subtheme System i Leg / HO 1:87 Vehicles
Year 1958
Pieces 1
Availability Retired
261-2 LEGO 1:87 VW Beetle + Showroom
Retail $4.00
Value $727.20
Growth  +18080.0%
Annual growth 8.2%
Theme / Subtheme System i Leg / Basic Set
Year 1958
Availability Retired
1234-4 Lego Mursten System i Leg 1x1 Letter Bricks
Theme / Subtheme System i Leg / HO 1:87 Vehicles
Year 1958
Availability Retired
253 LEGO 1:87 Bedford Flatbed Truck
Retail $1.85
Theme / Subtheme System i Leg / HO 1:87 Vehicles
Year 1958
Availability Retired
254-2 LEGO 1:87 Bedford Flatbed Trailer
Retail $0.70
Theme / Subtheme System i Leg / HO 1:87 Vehicles
Year 1958
Availability Retired
255 LEGO 1:87 Bedford Fire Engine
Retail $1.40