What does back of BBQ Hmbkr look like?

[liquidlew]

Just got a Texas BBQ off ebay and there was no paperwork with the pickup so I don't know if it's a real BBQ. What does the back of one look like? The back of this one is covered with thick wax so I can't see if there is any trademarks on the back. Thanks!:confused:

[Kizanski]

Is it an open bobbin style (no cover)?
All Rio buckers that I have seen (the ones made in the last 5 or 6 years, at least) are lightly stamped on the black bobbin "RIO GRANDE" (unlike the obnoxious way Seymore Duncan does it).

[liquidlew]

This one has the cover on it, and the wax is pretty thick on the back so you can't see the back plate. I suppose I could dig the wax out and see if there is any marking. Man, this pup is heavy!