LEGO 2309 Supplementary Set is a vintage Duplo set from 1984 valued at $32 for new and sealed sets, up 149% from an original retail price of $12.99. Annual appreciation has averaged 2.20% since release. On the used market, values range from $26 to $29 based on condition.
LEGO 2309-1 Supplementary Set is a Duplo Supplementary set released in 1984, containing 25 pieces. It is an assortment of basic DUPLO bricks in red, blue, yellow, and green, including 2x2, 2x4, and 2x8 bricks, as well as specialized elements like rounded-end bricks and an inverted double arch. It was a pre-school set.
A new and sealed Supplementary Set is currently valued at around $32, with annual growth of approximately 2%. The average used price is $27 for those in good overall condition. Based on current trends, this set could be valued near $33 within the next year.
Supplementary Set (2309-1) is a very old and rare LEGO set. It has not been available online or in retail stores in good/new condition for over 2 years. Because of its scarcity, the current estimated value of in new condition of $32.39 may be much lower than its true market value. Released in 1984, sealed sets in good condition are especially difficult to find, often commanding a premium well above estimates.
There are currently no new/sealed listings available for Supplementary Set at this time.
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