Jimy: How much do you want for the "safe queen" Model 541-T?
I have never used serial numbers to date the manufacture of any of my Remington firearms.
I use the "barrel date codes" on the barrels.
An online search will quickly find a date of manufacture code cypher for your Model 541-T.
I have the code in my "favorite places" and a hard copy of same that I take to gunshows and gunshops for info.
BTT
Hold into the wind
VarmintGuy