Textiles - pin box

This box is my best recent find. It cost about a pound in a charity shop, and I originally bought it just because I liked the design: it's 60's-ish and perspex with a metal lid (and marked 'WMF' - does anybody know who that is?). I guess it was originally a cigarette box, as the inner base curves up to each side - but this makes it brilliant for sewing. I store my flat-flower-headed pins in it and they're easy to take out, whereas with a plain oblong box they used to hide in the corners.

I found just one on an auction site and it sold for £11, so this box is not going to make my fortune, but it's nice to have something that makes life easier!