Possible Spitfire BFP from Norway

I have in my possession a strange BFP said to have been removed from a Spitfire wreck apr 1952-53. I have searced and looked a lot on different forums and internett sites but I have not been able to get a positive ID of this Item.

The finder back in the fifties are sure that it was a Spit. The story is confirmed from others as well. Thes Spitfires belonged to RNoAF sqdr 331 at Værnes Air Station in Middle Norway and was dismissed around 1952. All aircrafts were sent to a scrapyard sadly.. There was however also 3 or 4 special equpped Spitfires said to have been a small recognation wing (Named photo-Spit locally). These were also post war stationed on Vaernes Air Station before they were scrapped... I am very curious to hear if some of this forums expertice may be able to tell me more about this

The Spitfire Site

A Tribute to Britains Finest Fighter