14th item, with a gap. Although not visible in the image, this pin is a screw and can be removed. You might think that tightening the screw further would close the gap, but it won't turn any more. It seems to be made this way originally. Because of this, the magnet and lens move loosely when taken out, but are firmly fixed when stored in the case. The case itself seems to act as a leaf spring. There are no markings anywhere. I think it's made of brass. The construction is quite solid and has a certain heft to it. It weighs about 110g. The compass works properly. An antique compass and lens combined. I think it's quite rare. #antique #retro #rareitem #vintage #netsuke