probably not, here are still pics I post 12 years ago
http://forums.nitroexpress.com/showflat.php?Cat=0&Number=310949&an=0&page=0#Post310949

what looking unselfish is not as it seems, using your forum as an online memory nitrox

if I still collecting data this way the next years there would be a chance to clear some questions about this guns. a friend in my area is working on a book projekt about the Collath family but let the guns aside. some day it have to be done with the guns also.

Drilling W.Collath Söhne 16/65 + 9.3x65R, SN 20091
https://www.kunst-waffenkammer.de/feuerw...hre/drilling-3/

Drilling W.Collath Söhne 12/65 +8x57IR ( C 12 Mod. 88 / 8 M.R.)), SN 21118
https://www.kunst-waffenkammer.de/feuerw...llath-drilling/