Oddly enough, I've not been able to locate a thread dedicated to these companies and the specialized layups they created for the Vintage American Drum Companies.
There are tons of myths and bad info out there on the "furniture" and "wood supplier" companies building drum shells for different drum manufacturers. We know their names, but obviously do not have all the facts.
I am starting this thread to allow the forum to add pertinent historical information to this site.
Please key in your bit of specialized information pertaining to Keller, Jasper, and the like. Specify the American drum company they built for. These drum shell builders have supplied shells to the great Vintage Drum companies for more than fifty years. They have built specific layups for certain companies that are not to be repeated for any other company. These company layups would make for some fascinating reading.
So, jump on in with what you got and add some valuable information to this Vintage Drum History site.