opinions please

[nick crisp]

its a yam part guys YMD200109001.

i see how the bottom is interchangable though, i wonder if an oxford part will fit nick?

Difficult to say from the photos mate. It does look very similar to the Oxford ones (Humpback, as said) but also looks a little smaller than the one I used to have. Yam part no. doesn't help I'm afraid 

Might be able to do it on measurements of the base zip - approx. width x length?