Cardboard scales

Martin’s technical scales, made in Australia c.1930s

Eyre & Spottiswoode Publishers Ltd draughtsman’s set of cardboard scales, made in London c.1920s

Both sets of cardboard scales are complete, having a series of scales from  A – H, and come in their original boxes. Cardboard scales were used before plastic scales took over, and it’s rare to find complete sets which aren’t too battered. I confess to loving scales- it’s something to do with the detail and their mechanical nature, and of course nostalgia…these days all my drawing is digital and one rarely uses physical scale rules.

The British set of scales was owned by one F. Gelburn, who attended the British Institute of Engineering Technology.

For sale: $AUD75

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5” slide rules [sold]

5" slide rules

5” slide rules
Unique Universal 1, made in England, c.1955
No 11 ZR Albert Nestler, made in Germany, c. 1960
J.H. Liddle & Epstein P/L, made in Sydney, c.1962

The 5” [125mm] slide rules were made to fit in the pocket, for calculations on the go! These slide rules come in their original plastic or leather cases; and the middle slide rule has its original owner’s formulae incised on the back [perhaps for cheating on tests!]

Since this image was taken, I have collected another 5” slide rule; so if this is your thing, let me know.