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
Blue Track (1966-79) and Gray Track (1980-91) Box Images - LEGO Train Tech - Eurobricks Forums
Classic 1980s-style passenger train with streamlined GG-1 style locomotive - real world MOCs - LEGO Train Tech - Eurobricks Forums
1980 Large Train European (EU II 107581/107681 D/F/NL) : Catalog c80eutr | BrickLink
40370: LEGO Trains 40th Anniversary Set Review - BricksFanz