Trevor,
I believe that both are '33 V8 pans. The lower one is likely very rare as it was used on early '33s which still had the same front motor mount spacing as the '32s (12") whereas the upper one was used on '33s with the later 17" front motor mount spacing.
The increased width of the '34 front cross member at the rear sides (compared to either version of the two different '33 cross members) necessitated a further shortening of both of the pans, including the left side (as it did with the LHD version shown below). Further, I believe that the right side RHD pan shown in your earlier photo is also a '33 pan for the same reason. It is too long to clear the back of a '34 front cross member.