^^I would agree AS. Great link to the missing patent info. He may have come up with the crown design (all trussed up/lighter) in the early 20's, as his patent was applied for in July, 1922. I have also recently been noticing what appear to be similar forks with no truss architechture or means to attach the Shelby-style truss plate to the base plate of the crown. These could be in fact earlier Meiselbach forks pre-patent.
My early Shelby's frame and ADM fork attached is very lightweight. The frames if not forks as well could be made with Shelby, Ohio seamless tubing in an effort to keep the weights down and quality high. Not sure how long they were in business.