[Stellan Bojerud (RIP)]

Yes Sir, I can boogie, boogie-woogie all night long after seeing those marvelous pictures.

It is surely a GB made Kerrison Predictor. I think the US never made them but bought them from GB.

Instead the S.C.R 584 Automatic Gunlaying Radar was developed in USA. When Hitler started dropping not only V 1 but V 2 on London General Marschall sent 165 of these and 20 US AA Btys to GB.

Colonel Kerrison (RA) is credited as inventor of this mechanical computer.

I am sure that some of our British friends could deciphre the factory M & P. Ltd.

Thank You Tony! Your pictures have helped me a lot in my research.

Here You can see how it was deployed. The Kerrison Predictor to the right behind the gun. The sight operator standing on the gun platform. The gunlayers hadn´t to calculate speed and course but only keep the target in the middle of the "spider-web" sights. US gun North Africa 1943. (US Sight Computing M7 or M7A).