Think I've seen that receiver ring atop image before. Oh yeah! It's termed "ink blot"!
But trying to be serious for a moment (it's tough)... The serial depicted looks suspiciously of a neat & orderly production rearsenal job likely of postwar application w/ new SN applied. Differing or restatement of original, another question. I've seen comparatively few double Alfa digit SN prefixes. Some Chinese such as "AF". Bolts are simply too swapable to typically be definitive as such alone suggesting origin of a sporterized 98 barreled action. (Serial of 'FH" prefix matches French Mas 36 as only bit of dicta. Any under-stock positioned metal markings perhaps of help... or not!
Best of luck with ID!
John
