I'm starting a project to restore my father-in-law's Huffman Dayton as a gift for my wife's birthday. Before he passed away, my father-in-law recalled getting the bike on his 16th birthday which was in the fall of 1942. The serial number from the frame is H98581. I've searched serial number references on the web and most seem to have the H plus a 6 digit number, vs. a 5 digit. I did find a few photos for some of the G519 military versions with 5 digit codes, but those had the year date code also stamped on the frame. As you can see this one does not have a year code stamp so I'm assuming it was a commercial version made during the same period. Just looking to identify / confirm the serial number to age. It's been 12 years since he passed away so I'm just trying to confirm that my memory serves me right. Any insights on the bike would be appreciated.