Here is an interesting French Combination Key Padlock. I have not seen one like it before, which appears to require not only the correct key, but also the correct combination. A nice design.
OFFERED IS A BRASS AND IRON LOCK MARKED BREVETE S.G.D.G. IT MEASURES ABOUT 3" TALL AND IS IN EXCELLENT CONDITION. THIS LOCK COMES WITH WHAT I THINK IS IT'S ORIGINAL KEY . THERE ARE THREE DIALS NUMBERED 0-9 THAT MUST BE SET CORRECTLY THEN THE LOCK WILL OPEN WITH THE KEY. I DO NOT KNOW THE COMBINATION BUT I AM SURE THE LOCK WILL WORK IF YOU HAVE THE PATIENCE TO FIGURE OUT THE COMBO. - eBay (11 Feb 2013)
This padlock had a high bid of $370 (Plus $6 Shipping).