The serial number font on Krags seems to change at times.
Some digits may get odd as Dies appear to wear out, clog with residue, or fail. (They were stamping the markings on casehardened steel)!
The depth of the 'strike' also appears to vary. Sometimes there seems to be 'mixed number styles' even within a serial number.
I am not arguing. I am pretty 'ho-hum' about serial numbers.
It is a reality that some U.S. Krag numbers are easy and some are very difficult to read.
Sometimes a magnifying glass and varying the lighting are in order. Photographs can help or fool.
It makes you wonder how important the serial number was to the Ordnance Department, "back in the day".
IMHO - Probably there is a significant 'error rate' in some numbers reported in SRS Data.
Attached are some sample numbers from: 1897, 1901 (2), and 1903:
(FWIW - My number, closest to "1911Ron's", has a 'flat-topped 3'. No mistaking that "3" with an "8" .... "Dohz Wascally Spwingfield Gwemlins")!