Long Branch serial number listing

[Caio]

Hi to all members,
This’s first time that I’m posting and I’m mainly interesting on Enfield Rifles.
I have a question concerning a Long Branch No4 Mk1* with receiver marked 1945 with block serial number 68LXXXX (I have omitted the last digits).
Friend of mine is the owner and rifle comes directly form Italian Navy arsenal, so not passed through a potential other refurbishing and is in the condition of when have been refurbished at 1950 by the Canadian Armory.
My question is, based on “literature “ serial number block should be a middle 1944 production but receiver is marked 1945… so I’m wondering if has been reported others case of receiver 1945 with 68LXXXX serial number range
Ps, all parts number matching and are LB marked barrel is five grooves rifling