Looking at his other listings, this one looks suspect, however I know nothing about HsC's:
http://www.gunbroker.com/Auction/Vie...Item=404600222
David,
I, too, know little about the Mauser HSc, but check out what I've found.
http://old.mauserguns.com/gungalleryModelHSC.asp
Based upon the data here the serial number isn't possible. Also, it does look a little too shaky to me to be worthy of Mauser's workmanship. And other markings are NOT present, as reported in the article, which should be.
Again, I'm throwing the BS flag on this one. Although, I have a warm-from-the-oven slice of crow pie which I am willing to eat when our REAL experts smack me back under the porch.
Regards to all,
Gunny John