Richard, I have already been through this, so maybe I can help you out. I have the original print for the Holman Moody air horns, and have the mold to make the parts. Let me know if I can help you out.
Richard, I have been through all of this already. I have the Holman Moody print for the airhorns, and they were made out of Lexan. I already have made the molds to produce the airhorns, so maybe I can help you out.