Steamer Trunk

Garage saling this weekend and came across this steamer trunk, not being a big fan of trunks, but this one caught my eye.
It is 40"L X 22" W X 24" H. It is black metal, having what appears to be a leather bordering all around the edges, with the interior being wood, covered with a white paper lining. This trunk was also on wheels. What did catch my eye was the fact that it did not have the conventional easy to pick lock, most trunks have, this one having a Yale lock. The only identifying marks on the trunk are on the lock itself " The Yale & Towne manufacturing co. and a number 438.
Looking up the Yale & Towne website that logo looks to be early 1900's ??
I know we have some trunk afficienados here, so fly at it. Any help on date or maker would be helpful.
Thanks,
Bill

 

Nice that you have the key. Am thinking 40s, give or take. Not a lot to pin it down. Think the paper is original? Usually see a more distinctive lining on earlier ones which helps to date these. That lock and key look a bit later as well. Any design on the key?

 

verybrad,
Actually I do not have the key, the key in the picture was one I had while trying to find a key, and it fit in, but did not turn, it was just a Yale key I had. Am hoping the # 438 on the hasp tells the local locksmith about the lock and possible key.
Bill