Gears is a subtheme of Universal Building Set that consists of 8 sets that ran from 1970 to 1974. Most sets were released in 1974 which accounted for 4 sets. As of today, the average annual growth of all the sets in Universal Building Set Gears is around 5.4% per year. The current value of all sets in new/factory sealed condtion is $1,056.90. As of today,
811-2 Gear Set is the most valuable set in Universal Building Set Gears with an estimated new/factory sealed value of $511.70.
Most valuable Gears set 811-2 Gear Set - $511.70
Most valuable retail Universal Building Set set800 Gears, Motor and Bricks - $129.03
Highest growth Gears set813-2 Tractor - 3165.74%
Most owned Gears set802 Gear SupplementLEGO's Universal Building Sets theme was released as early as 1966 but it was not until 1973 that the Basic LEGO sets became known as Universal Building Sets. These sets were produced in two set version numbers, the first was for sets that were sold in the UK, Europe, Canada and Australia. The other version numbers, but for the same exact set with the same box artwork was released in the United States. Most, but not all sets between 1973 and 1981 were sold in both regions.