There is a growing number of ebay sellers exploiting the ignorance of buyers -
I bought at least 3 items which I doubt were ever made as actual ear trumpets.
If you would like a list of suspect Ebay ear trumpet sellers
- contact me.
Read Caveat Emptor - buyer beware !
And some positive help if you want to buy one.
As ear trumpets are becoming quite rare, collectibles marketed as ear trumpets fetch higher prices than they would if accurately described. Even some auction houses get it wrong !
Buyer beware ! I am NOT saying that any of these examples were intended to deceive - just be very careful to choose the items which seem to have reasonable provenance. Mostly, I believe that the seller is mis-informed.
See another opinion here
To quote the Hearing Aid Museum:
"Genuine ear trumpets have curved ear pieces so the end can go into your ear canal and yet the bell of the trumpet still faces forward."
"Don't be fooled by the fact that you can hear through it"
Here are some examples: