LEGO 1205 Keys for Wind-up Motor is a vintage Service Packs set from 1982 valued at $1 for new and sealed sets, up 43% from an original retail price of $0.99. Annual appreciation has averaged 6.39% since release. On the used market, values range from $1 to $2 based on condition.
LEGO 1205-1 Keys for Wind-up Motor is a Service Packs set released in 1982, containing 2 pieces. It includes two red replacement keys designed for use with LEGO wind-up motors, such as the motor from set 890 Wind-Up Motor. The keys interface with the motor’s winding slot to tension the spring mechanism for powered movement. This pack is identical in content to set 5004 Motor Keys.
A new and sealed Keys for Wind-up Motor is currently valued at around $1, with annual growth of approximately 4%, which is higher than other Service Packs sets. The average used price is $1 for those in good overall condition. Based on current trends, this set could be valued near $2 within the next year. While long-term growth remains positive, recent trends indicate the rate of appreciation is slowing.