leuchtturm is a german brand. it probably means " lighthouse" according to the box. i bought this at a hobby shop for stamp collecting. this loupe has a led light and uv light switch , probably meant to see hidden features in currency and stamps. it also has 10X magnification which is good enough to see the imperfection in the lesser-finished.
i wore a vintage rolex to the shop and was shocked to discover the reality of things.
anyway, here is what it looks: