Here we have 3 different wood and brass 25 cm or 10 inch folding rules. There are two different ones made in Holland by Jasper, nr. 29. The last one is by J.Rabone & Sons from Birmingham England. One Jasper and the Rabone are also marked Amsterdam for the old “thumb measure” (that is almost equal to inch) which was outlawed ca 1870. The other Jasper is a bit newer and no longer has the Amsterdam scale. They are all complete and working with clear signs of use and age. Check out the video on a vintage folding ruler collection in found on Youtube:
