The body is nickel or chrome plated, 7mm square in section. I think its my only square pencil, but not totally sure on that. It’s a bit of an oldie and in average condition - there is some corrosion to the plating, etc. I imagine it dates from sometime around the 1930’s. There are no makers marks or brands other than the word “GERMANY” stamped into the body by the pocket clip. The tip is a cone, and it’s a simple twist mechanism to advance the lead. There is a big long cut up the conical tip, nearly splitting it in two, and the two halves are slightly sprung and thus grip the lead. The lead is blue.
Well that’s all unusual enough, but there’s more. One side of the square body is marked as a ruler, in centimetres and millimetres, 10cm long in total. The opposite side is also marked as a ruler, but this time its imperial, so 4 inches in 1/16th divisions.
But wait there’s more.
Yes indeed, it’s a telescopic body, extending out to a marked 25cm on the metric ruler, or 9 and ¾ inches on the imperial ruler scale. Seems a bit crazy to me they didn’t go all the way and make it 30cm or a foot long.