Mark,  being coated in porcelain coating like that brings the value down alot.  and I mean alot.   So much,  that you better just ship it right over to me so I can make it feel better with the porcelain stuff I have. ;)   Just kidding. ;D   Being a #11 and you don't see them hardly,  plus being coated. :o   Pretty rare in my book.   I too would have to break down and get it.   I would put an Ebay amount of a good $100-150 on it.   I may be low,  but I am cheap too. ;D   Nice find,  very nice.
Will Person Jr. 8-)