In 1972 LEGO released 1 Basic sets. The current estimated value of all these Basic sets from this year is about $160.99.
The LEGO Basic theme, which began in the 1970s, was designed to be a more general, non-thematic series of sets. Unlike the themed sets that revolve around specific stories, characters, or concepts (e.g., space, city, or pirates), the Basic theme provided a collection of standard LEGO bricks and pieces, often in a variety of colors. The goal was to encourage free building and creativity without the confines of a specific theme or narrative.
1972 LEGO Sets
In 1972 The LEGO Group officially expanded to the United States. After a licensing disagreement with the Samsonite Corporation, LEGO USA was established in Brookfield, Connecticut and Samsonite ended production of LEGO products in the United States but continued production in Canada. As far as new parts and production, 1972 saw the release of the first boat hull, wing, propeller and helicopter rotor parts as well as new parts including the 1x6 arches. The train theme continued to grow and a number of notable train sets of 1972 included set 181 Train Set with Motor, 180 4.5V Train with 5 Wagons and 724 12V Diesel Locomotive.