Lovely set of Hungarian marks from 1930 and I'm not sure just how much info you desire. A start can be found here:
http://www.doublegunshop.com/forums/ubbt...true#Post179526

I don't see any Belgian preliminary stamps so I'm curious as to how you know that the tubes were imported? It is possible that they could have been but both tubes wears the voluntary mark of tubes in the unfinished state. It seems there are some stamps forward of the flats but I cannot make them out. It was made in 1930 and returned in 1974, 1979 & 1985 for some Nitro reproof. For some reason I seem to recall that it was a condition of the law to return the sporting weapon when the law/rules changed. Maybe you can enlighten us here?

If you want to know all the marks I can begin with the St. Stephen's Crest and continue from there?




Kind Regards,

Raimey
rse