Yeah, could be a Greif but they fancied Superimposed over Juxtaposed. I would like to see a foto of the area forward of the flats. There looks to be Gebhard Helmuthhauser / Gebhard Helmuthäuser or Gebhard Helmuthäuser or Hänel's H under the steel stamp type, which I cannot read. Plus there are a few other marks just above the Preliminary Barrel Proof.



Hochachtungsvoll,

Raimey
rse