I am not sure just yet. @ this point in time all the scattergun tubes were stamped on the sides just above the water-table barrel flat interface. Then after WWI the stamp migrated to the barrel flats.

But regarding this Schork Cat, there's a full text just on him. Data needs to be fully mined & composed as it will be most interesting & a great read.

Serbus,

Raimey
rse