The LEGO HO 1:87 Vehicles subtheme, also referred to as LEGO small vehicles where plastic sets released in the 1950's and 1960's to compliment LEGO sets which could be used to build houses, gas stations, garages, shops and more. These vehicles sets remailed in production for almost ten years until they were replaced by LEGOLAND vehicles in the early 1970s. LEGO made the these small 1:87 scale vehicles until around 1969.
1955 LEGO Sets
1955 was a very important year for LEGO. In this year, Godtfred Kirk Christiansen attended both the attended the London and Nuremberg Toy Fairs where he eventually came up with the LEGO System of Play and the now classic Principles of Play. These principles were issued to every LEGO employee in 1962 and still stand as the core principles of the company. Godtfred organized the existing LEGO Mursten sets and modeled new designs around a single, common theme - a townscape or street scene. After nearly a year of development the result was the LEGO Mursten System i Leg (System of Play). The System i Leg (System of Play) was unveiled at the Nürnburg Toy Fair in February 1955 but the reaction was less than positive.