Aristo

Aristo Trilog Nr. 0908

This is a nice and powerful plastic duplex rule. The numbering and lettering is all slightly raised, which I find surprising, yet it adds to the readability. I like the way the right end labels explicitly give each scale's purpose.

Aristo 99K

Simple and clean. What a contrast from the above! This really is a lovely rule, from 1943 when plastic was still new.

Aristo 603

Ariso 622

The edge of this rule had somehow bent, as if it had been heated and sagged while lying over the edge of a table. I tried to unbend it by dipping it into a pot of very hot water, with poor results. Yes, I was able to bend it back flat, but it left cracks on the back and discolored/clouded the rotating disc. It's not exactly ruined, but it's wasn't exactly an improvement either. So it sometimes goes when you take up a collecting hobby!

Aristo 620

Clean and simple, nicely constructed! Too bad it's been "tagged".