Lets contribute to cut this Gordic-Kalezky-knot:
1. The case is to the best of my knowledge NOT of Kalezky origin.
His cases have some distinctive features which are not present here.
2. Vienna proofhouse records DO exist, but due to decision of
the ministry-legal-counsel NO access for private persons like me. The owner could try via a gunmaker/diplomatic channel to get an answer on the record contents.
3. The 4-digit proof nr of 1900 has another shape/form than the one from 1909 (speculation on preproof by the barrelmaker...?)
4. the 1909 nr. : If you get as answer from the proofhouse
"lancaster 11,6", it would not cut the knot (lancaster is a generic middle-european name for hammergun/rifle, 11,6 the calibre ...)
5.To my knowledge Kalezky records do not exist, the last entry I have seen with his name has been an address in Vienna ca 1942, I do not know if he was killed in the WWII bombing raids onto Vienna or how he was lost.
6. Its fun to see my DGJ-article on Kalezky being transposed to an Russian forum and now translated back from Russian to English.
7. Correct would be to make a chamber cast and ask a gunmaker
if he can recommend reproof or better keep it as it is as an objet-de-vitrine.
Felix Neuberger
PS: If genuine Kalezky product then there should be
a 4-digit serial nr, in case year 1900 prevails it could be 20xx,
in case of year 1909 it could be 273x.

Last edited by felix; 10/01/16 05:11 PM.