'Other' Constructional and Allied Systems Info & Downloads
Steel Engineering(1) Construction Sets
Steel Engineering(1) was a metal constructional system. It was sold in the USA from 1921/2 to 1924 by the Kelmet Corporation. This was a marketing company owned by Gilbert (the owner of Erector), who actually manufactured the sets (Gilbert had actually bought over the Kelmet Corporation in around 1921 very soon after its formation). Many of the parts subsequently found their way into the 'New' Erector sets of 1924.
Manufacturer / Distributor
Kelmet Corporation, New York City, USA
Probably actually made by A.C. Gilbert Company, New Haven Connecticut, USA
Info from the Metal Constructional Systems Database for STEEL ENGINEERING 
1921 to 1924
4.2 (see comment *1)
Bolts: round (slotted)
Steel with a Nickel plated finish
LH side of lid has boy & Big Wheel. Included some parts used in 1924 ERECTOR. Strips have alternate holes & ½" long slots. *1 4.3 in Flanged Plate, Curved Strips, & other parts - maybe all under paint, but 4.1 also possible.
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/leaflets/photos which can be downloaded by clicking on the appropriate image.
A Steel Engineering(1) set 1 instruction manual. It must date from 1922, as includes details of the 1922/3 prize contest. Note that unlike most other Gilbert manuals of the time, the manual is stapled in the gutter, allowing it to open flat.
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