Don't know on the 9.3x74R but I bet there was at least one in 9.3X72R S&S(Sauer), 9X58R or 10X55R. I believe the design was under DRP 78411, http://depatisnet.dpma.de/DepatisNet/dep...7&pdfpage=5 , so it would date to December 1894 or possibly a little earlier.

Kind Regards,

Raimey
rse