Unofficial LEGO Sets/Parts Collectors Guide - The LEGO 12V Electric Trains of the 1980s were very popular among LEGO train collectors. The 1970s 12V trains (starting in 1969) were only sold in
LEGO Trains 1980 Sets - Price and Size
1980 Large Train European (EU II 107581/107681 D/F/NL) : Catalog c80eutr | BrickLink
LEGO Trains 1980 | Brickset
LEGO Trains 1980 | Brickset
NEW Lego Trains Mail Van 7820 NEW SEALED 1980' | eBay
North America – At least we had 4.5 Volt (1982) | Brick Model Railroader
Minifigure40: Trains [Advertisement Archive] | The Rambling Brick
Still have dreams with that Lego trains from the '80s... : r/lego
Unofficial LEGO Sets/Parts Collectors Guide - Among many LEGO Train collectors, the golden age was 1980-1990... the 12V electric train years. And probably the most popular was the 7740 Intercity Train (not