Stencilling Stamped On Interior Skin Of WW2 Bomber Aircraft

Peter sorry I should have clarified – I was only talking about the LH image.
I guess it might also include factory ID but doubt that would be helpful since they would have been rolling it out by the mile during WW2 !

rgds baz

Ok thanks again.

Thanks Baz but what about the less obvious writing??? 🙂

Batch numbers/heat treatment etc prob Peter 🙂

The second photo reminds me of the markings on the end of an electrical component – something out of the 1154/1155 set? The part that I’m thinking of is maybe 35 to 50mm diameter and has a cylindrical aluminium casing with a flat end like this. I can’t be more specific because wireless things are a dark art to me. What is its diameter?

Thanks Malcolm.. revisiting research of a lanc crash and trying to find out if we missed anything obvious that would help ID

Peter I found this link –

https://aluminummarkings.wordpress.com/tag/alclad/

Is that what you want?

Thanks Baz but what about the less obvious writing??? 🙂

Alclad is Aluminium alloy with a surface coat of Aluminium for corrosion protection

Alclad is a duplex metal product made by cladding an aluminum alloy core with surface layers of pure aluminum or aluminum alloy, resulting in increased resistance to corrosion.

It is a sandwich of high-strength aluminum alloy between two sheets of commercially pure metal for a combination of strength and corrosion resistance produced by rolling.