'Other' Construction and Allied Systems Info & Downloads
Duplex Standard Construction Toy Construction Sets
Duplex Standard Construction Toy was a development of the Erector construction system with alternate large and small holes. It was made in the USA from 1929 to 1932.
Info from the Metal Constructional Systems Database
1929 to 1932
12.7 (multiples of value shown, including half.)
4.4 (see comment *1)
Bolts: round (slotted)
Steel with a Nickel plated finish
Generic name of modified ERECTOR with alternate large & small holes in Strips, Plates. Sold by stores under brand names, see LITTLE JIM , STEEL-TECH, STEEL ENGINEERING [2, TRUMODEL. Data from LITTLE JIM set. *1 & 6.6.
The MCS document for this system is shown below. It can also be downloaded to your computer if desired here
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The report can be zoomed into, made full screen or downloaded as a pdf document by using the controls provided
Below there are manuals/leafets which can be downloaded by clicking on the appropriate image.
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