What barrel date?

[Prince Humperdink]

I have a 4,392,2XX SA,and I know it was made in 1953,but can't remember approx Month.My question is what approx month/Year manufactured barrels were being used (as the norm,not exception)to produce Complete Rifles in this SN range.Was SA using stocks of replacement barrels for production at this point,or did They use barrels produced in 1953 as a rule?What Do Your correct examples wear?Would a 10/52 barrel be way too early by 4.3 production?Thanks for any help.
Ryan

[Punch The Clown]

I browsed around at others and it seems late 53 is the most common but who knows?