I can contribute these 2 styles. The pics are kinda old, maybe 8-10 years ago, so I don't think they are repops. Be careful, they are actually producing porcelain thermometers now. The wood that holds the tube in place should look old, and check the screws that hold the wood slab to the back. They should be straight slotted screws, and should look as though they would not easily remove. Hope this helps.