SS Visor Cap Skull

[Disco Partisan]

Thanks Chris,
Also you can feel aluminum in it by its weight as it is lighter
One thing I wondered before is at what point (in the production process) the copper and aluminum was bonded together? simulatanously whith product being made like while die-striking or did they "die-strike" cupal sheets , or did they die-strike copper and aluminum sheets individually and then bonded them together?

[Ian Hulley]

did they "die-strike" cupal sheets ?

This ^^

Ian

[SScollector]

I think that they had CupAl sheets made up that they used for striking.

Chris

[Disco Partisan]

and that's what I thought then I would suppose the aluminum layer should be visible on the edges IMO just like all layers are visible here

[Ian Hulley]

The edges of the sheets 'smear' as they are stamped.

Ian

[Disco Partisan]

possible indeed which is most probably the case

[SScollector]

I don't know why some "smear" and some are left with a bright, perfect aluminum edge line, but this is the case. Also, the eagles show this line more frequently than the skulls do.

Chris

[Funia]

I have zink one Zimmerman.Surface looks almost same as skull posted in this thread
Here is CupAl dug of Zimmerman.
Notice how thick is Alu layer
Peter

[Disco Partisan]

on the 'dug-out' example (below) the aluminum layer is completely gone (corroded away) and IMO the "smear-edges" of the copper layer can be clearly seen

[Funia]

Another one to compare
Reverse of this skull looks not destroyed despite missing pins.


Peter

[SScollector]

That is very interesting to see. Thanks for showing them!

Chris

[Funia]

Your welcome

Peter