Here is the horn for the 36 that I am working on. I still have to finish the spring plates. They were kind of gun blued and dipped in shelac from the factory. I ran out of shelac and had to order some:(
Here are all of the pieces that go into a 9 bolt horn. The body is a real deal 9 bolt body. The diaphragm and reinforcement ring are later versions that I drilled three holes in. Check out all the hardware that it takes to mount one of these horns. I made the top rubber piece, it is 36/37 only.