ear trumpets

beehive

3/4grilleearside
earpiece material
image of ear trumpet
ivory
image of ear trumpet
missing
image of ear trumpet
vulcanite
image of ear trumpet
plastic

These trumpets are an ornate variation on the London Dome.

I haven't seen any suggestion that the shape improves performance, but it is easier to believe that it happened.

Materials include metal, faux tortoiseshell and cellulose acetate.
4 examples