225 6 and 8 Stud Beams Supplementary set
British Lego Ltd, UK. 1960
Tray, unfolded. 1 color printing on uncoated cardboard.
The 225 supplementary set consisted of nine beams in a combination of 6 × 1 and 8 × 1 sizes. This box consisted of blue pieces , but was also available in other colors.