serial number 1347 in 10,57x57 sold by Widforss in november 2006
thats the rifle I have now!

9,3x57, serial number 1206

another G. G. & Co., modell Kaba, kal. 9,3x57, number 1197 without a pic

a 10,75x57, number 1273

all three sold by Widforrs in may 2007

I think this is a swedish gunmaker modification of an original gustav genschow/kaba in 9,3x57 rechambered to 9,3x62, new stock, number 1207
sold by Widforrs in mai 2011

10,75x57 serial number 905
not sold in the may 2011 auction

thats the rifle forum member rolf buy this year

so the lowest serial number in 9,3x57 is 1197 but 9,3 and 10,75 mm rifles are in one range of numbers. the very high number of bakpostens rifle is a mystery!