Argus made a variety of cameras over the years, almost all of them manual-set, yet didn't do much with meters. They sold a couple here and there, but it wasn't until the late 50s that they began seriously branding their own.

Argus sold a number of meters, including four with the L3 designation. According to the Argus Collector's Group, there is no special marking on the meters to differentiate them, so the "Mark 1, Mark 2..." designations are my own.

This is a Mark 1, the first of this series. It's actually made by Metrawatt of Germany, and it's the identical twin of my Horvex 2. The only difference is the name and model scribed on the calculator dial, and the case color (black here, the Horvex is creamy-white). It also takes the booster cell accessory, a long-time Horvex feature.