They say this is a 6 shot, but it looks like 5 (the Pocket Navy was 5 shot). I don't think the Belgians made the 1862.
This gun has absolutely no marks at all? I'd stay clear of that one, at that price, with those wire brush marks.
Check this out:
** Sold for $572 (Garth's)
check this out from a year ago on THR: (sounds like the same gun with the countersunk wedge screw).