On the left side on the barrel knox is "cal 7.92" ...small P in a square and R in a square
"cal" being in a stylized font.
Left side if the receiver is the serial number only
Appears to be all matching
I just checked mine. It is basically the same as yours except my date of 1945. I had labeled it as a model 43, for the Army as opposed to the M44 Air Force with the 'wing' crest. Might not be a real model difference, just crest and front sight ears. Don't know.
I gave about $50 for it 5 or so years ago and has a MM bolt, often with rust issues.
This is a Spanish M43 Mauser - FR-8 rifles were made from M43 Mausers, that is why you see this crest on some FR-8 rifles. The extended bayonet lug allowed usage of the earlier style bayonets still in inventory in the Spanish arsenals. Going price on a rifle like this in good to very good condition is $160 to $175 (if matching numbers).