[Guest]

I'd actually say that is a very rare MkXIVe with four cannons (yes the E wing could take them). The outer gunports are completely absent (note there is no canvas patches over the leading edge where the guns would be), the barrel coverings are much shorter than those of the C (note the inner barrel, in C wing this is longer) and the cannon blister is very narrow (moreso than the C wing).

This is a possibility for the pack, thanks for the picture!