Can you help to identify these frames, bikes or parts?

Hi I've recently acquired a frame from a friend who thought it was an Aende, but looking at the linked below thread I'm intrigued to think it's a Mercian?

NOTE: I can't see a number on the BB shell.

http://www.lfgss.com/thread55711.html

Here are the pictures, if anybody can conform what it is, I'd appreciate it very much.

Looking at the paint I'd say Pegoretti HA! #nothelpingiknow