http://www.littlegun.info/arme%20russe/a%20matska%20gb.htm

Interesting set of 3 Ring Krupp tubes by Kilby on F.O. Matska #177. I wonder how Sauer was involved and if that serial number sequence is Kilby's:





Even though the area forward of the flats differs, there looks to be a similar brace of stamps on the tubes.

F.O. Matska thread: http://www.doublegunshop.com/forums/ubbthreads.php?ubb=showflat&Number=130190&page=1

Kind Regards,

Raimey
rse