We found this small piece on Hunsdon airfield that looks like a bracket of some sort. Now, with the numbers our first thoughts were Spitfire because of the 300 prefix. It is about five inches long.
Marks are:
30053-541 40
6S
212 in a circle, P to the left of this stamp.
Any help gratefully received:)
very nice!!! It is the radio controller bracket of the port side of the cockpit of a Spitfire!!! Could have done with that last month!!!