Unknown 20x70b Becker Projectile (?)

[Spaceinvader]

Hello everyone,
Another item for ID, this time what seems to be a 20x70b Becker projectile, however I cannot ID the type exactly. It doesnt line up to any other Becker type projectiles I can find online.

It originally came to my friend in a "trench art" display, with 3 of these projectiles screwed together in a stack. He took them apart, and they all are identical, with markings, shape and construction. They are hollow with what seems to be a separate base on them but they cannot be removed (atleast by hand). Possible AP-HE projectile?

The markings are identical across the 3, with what looks like the letter "N" on the side, a weird squiggle, a crown on the drive band with something underneath and a crown on the base as well with the number "1" under it.

Any ideas?

Best Regards,
Rhys

 

[highlandotter]

They look like the type considered as AP projectiles. I have currently 1, have had others just like it. There are at least 3 other kinds, I have 2 of the 3 others. They don"t turn up very often in the US.

 

[tomsk]

Is it normal for this projectile not to have a cannelure for crimping in to the cartridge

 

[rigby]

This is a 2cm Becker AP-T Projectile.
I have the same, but without baseplug.
There were two different AP-T projectiles.
On the drawings you can see the differences.
The drawings are from a good friend, Jacob Lippert (RIP).

 

[highlandotter]

Yes. All 3 varieties that I have do not have crimps.

 

[Spaceinvader]

That certainly looks to be it, however these dont seem to have the ever so slight bulged tip on them, but are completely straight walled unlike the in photos Rigby provided (thank you very much!) that both have bulged tips. The ogive is also very short as well. Is this simply a manufacturing difference or is it a different projectile entirely?

Also how exactly does the tracer work on these projectiles? The base plate does not remove easily and there is no obvious tracer cavity.

 

[rigby]

I still have a 2cm Becker tracer projectile. This also has only a small hole in the base plug