The original Lott's Bricks were introduced in 1917 and were sold up to c1941. They were known as Series "B" until 1925. Boxes A, B, & 1 to 6 were available. Plus boxes 0 from 1924 and 0A from 1925. The boxes were renumbered from 0 to 5 on 1/1/1926. The early sets had white and black bricks and the black bricks were replaced by red ones in the early to mid 1920s. Blue bricks were added to some sets from the mid 1920s. Set 0 was repackaged as Junior Builder in 1938.
© Andy Harris