
4512V covers the LEGO trains of the 4.5 V and 12 V systems from the 1970s and 1980s. The 4.5 V trains ran on batteries carried in a wagon or tender, while the 12 V trains drew power from conductor rails laid between the running rails, fed by a transformer with a speed control. Until 1980 the track was blue, which gave these years the name of the Blue Era.
4.5V / 12V consists of 83 sets that ran from 1972 to 1986. As of today,
7750 Steam Engine with Tender is the most valuable 4.5V / 12V set with an estimated new/factory sealed value of $6,368.
Summary
Trains 4.5V / 12V Steam Cargo Train Set set 7722 was released in September 1985, retailing for $69, but has since been retired. New, unopened Steam Cargo Train Set sets are valued at $1,352, while used sets can be found for $191 in good condition.
Read more