Help Identify a Crashed Plane

Hi
I am a newby to this site and need some help to ID a piece of crashed plane that a friend brought me back from a hiking holiday in Scotland. She found the piece on its own and it seems to have a lot of numbers on it!

From the Photo attached it has:

a circle with HP 21B (or an 8) and then the number L129PR94157 (or L1297694157?) and then at the far end of the piece MJ142 and then another number partially obscured by crash damage that lools like _ _ B51793 (or 8). Can anyone help?

Hi Chris, I can't identify the part from the part numbers you provided, but some of these are also inspection stamps. More knowledgeable forum members might be able to help with the part numbers.

From looking at the picture, it is clearly a riveted bracket or stringer of some sort. If you could probvide information as to where exactly your mate found it, then a co-relation between its location and known crash sites in Scotland can be made. The Majority of wartime crashes in Scotland have been identified and many have been visited and are well known to hikers and researchers alike.