I may have the same razor. I picked this up in an Ebay auction (I like the look of framebacks):
http://cgi.ebay.com/ws/eBayISAPI.dll...MEWN:IT&ih=019
The picture was not real clear (so what else is new?) - so when I opened it, I was shocked at what it was, very thin with this brass tubing on the spine, etc., etc.. The tang says:
JON. ENGSTROM
ESKILSTUNA
SWEDEN
I doublt if I will hone it or ever shave with it. It's a curious piece that I'll have around for conversation. It's, also, quite light, which I don't like.
I'm not out a lot for it, more than I wanted to pay, though: $16.29

Oh, well....... could of been worst.
Steve