This is a link to a Gunbroker listing.
http://www.gunbroker.com/Aucti....aspx?Item=299511376
I haven't been able to find anything on Heym side by side shotguns from this era, except some side lock "best" guns. They seem to have made a lot of combination guns at the time.
Why would a shotgun have a cheek piece buttstock? It looks like a drilling without the rifle barrel!
Any information would be appreciated. I'll cross post this on the combination gun forum too.

Looks like a classic continental double, with scalloped action, leg-o-mutton case, and Prince of Wales grip. And the 16ga is (or was) to Europe what the 12ga is to us here in the states. Chris Sells (new_guy) could probably fill you in on the details.

Thanks, Biebs. I found out it's a Gebr. Heym, not FW Heym. No import markings. Perhaps a wartime bringback?

Marty, "Gebruder" with an umlaut over the "u" mean "Brothers" in German. I'm not sure if F W and Gebruder Heym were different companies, or just the same family of gun builders at different times in history. Again, Chris would know.

Thanks, Biebs. Gebruder Heym was Richard and Bruno, apparently sometimes marked R&B Heym. That's all I have been able to find. I have PM'd Chris to pick his brain on this, thank you for the suggestion.
I have a Gebruder Merkel drilling in 16 ga over 30/30, so this might be kind of a duplication for me anyway. I have a few days to decide. I just hate to spend money on something I don't know enough about. I also have a Browning feather lightening in 16, so it is kind of silly, but I have always preferred side bys.

Cheek pieces were common on German shotguns at that time and were even popular for the domestic market after WW2.
No returns are always a big red flag, looks like a extractor gun, no mention of the bores, no mention of original finish and how much is remaining, no mention of any flaws, ie cracks chips, dents (barrels and wood).
With no return I would not buy it unless I could drive over and hold it in my hands first.

Unfortunately the pictures are not very informative. No close-ups.

Not a gun I would get excited about. See plenty of similar guns in gunshops in Europe. They tend to my taste anyway be overly heavy for a 16 bore.The feel of them I would describe as clunky !

I thought the weight was OK at 5 3/4 lb, what would you want it to weigh?