Please post any images Martin. I'll try to dig up the ones I've seen. I think that Sauer was sourced by Springer and Fkert also for tubesets. If not Sauer, then tubesets by the Kelber brothers. I can't say that tubesets other than Krupp 3 Ring were chronicled, but many, many Austrian, Bohemian & German sporting arms have Sauer tubesets.



I'd really like to locate the certificate on this Matksa tubeset.

Kind Regards,


Raimey
rse