This is preserved at the Fortress (
Veste) of Hohensalzburg, Austria, and like the Weißenburg gun it too retains its original oaken stock to which the wrought iron barrel is attached by three fixed iron bands.
The round, staged barrel features a smaller breech and a notably wider ball chamber (
Flug).
Although I took a lot of photos of it back in the 80's I sadly do not have any ecxact measurements but I estimate its data to nearly the same as those of the Weißenburg
Steinbüchse: ca. 65 cm overall, barrel ca. 28 cm, bore ca. 8 cm.
The touchhole is still rather small and not too far off the rear barrel end, the caliber is already rather big for a manually operated piece and the barrel is already wrought of one piece around an iron bolt and fire-welded together. This latter part of the inner barrel is seen in the pics. A dating of early 15th century (ca. 1410-20) would therefore seem quite right but mid-15th c. is also possible.
It too was doubtlessly mounted pivotable and adjustable on a heavy wooden base.
What's highly interesting is the
iron tongue of a longitudinal band nailed to and sticking out from the underside of the carriage. I guess it must have had some function either in connexion with the (missing) wooden base or with the loading process. The rest of such a tongue seems to be present on the Weißenburg
Steinbüchse as well. Mabye it just acted as a sort of grip when adjusting the piece or revolving it on the socket.
Anyway, I once had an idea that might have presented a solution but sadly can't seem to remember. Must study the contemporary illustrations - and hope for your brain storming, of course!
Best,
Michael