Bing's constructor: the up-to-date construction toy. (1914)
Bing (company) · Bing (company) · leaf 66
No. 110 Large Lathe … 1 Pulley Wheel 2. in. diam. 2 , Wheels 1's , 4 Explanation of the letters and figures appearing in the design :— 2 eg A means Angle Joint T means T Joint St means Straight Joint SW means Spring Washer WR means Wedge Ring 1 Centre piece The figures indicate the length of the bars required in inches.…
Toys -- building · Toys -- architectural
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