I've read a lot of books on WW II sniping and nowhere have I ever read that Germansnipers were issued anemometers (wind speed thingy). On top of that, the seller asserts it belonged to Sepp Allerberger. Note: Third Gebirgs Division is scrawled on it. It should be Third Gebirgjager Division and regiment #, not battalion # which is on it. I don't think the person knows history. Move the decimal over to the left and I'd buy it as "toy" to play with.
https://www.ebay.com/itm/256657825578