I have two pieces of magic apparatus that may have been made by Roterberg. One is a tripod stand made of iron (the original top is missing); the other is a telescoping brass flagpole. Both are in very good condition, though a bit tarnished with age. There are no hallmarks that I can find. Can anyone tell me how to tell whether these are Roterberg items, and if they are, what the present approximate value is?
Thanks for any information you can give me.