This is a Standard Weight 16 gauge. A certain group of Auto-5's were made with a change of serial code for a brief time. FN made and shipped guns with the "T" prefix Between late 1957 and April 1958 when the code was then changed to the well know date code of "8R" for Standard 16's. There were almost 11,000 Sweet and Standard made guns in this group, and no way to tell how many were the Standard Weight. With your gun it would be safe to say that it was probably shipped in early 1958, but it would be more acceptable to state a 1957 year of manufacture.
The question can not be answered without a serial number. Call Browning.
You can goto the Browning web site to answer this question. I had the same question on the same gun and that is were I found my answer.
1930
your browning auto-5, 16ga shotgun was produced in 1947.
You can access the date of manufacture of many Browning firearms at the Browning website, under Customer Service.
You can access the date of manufacture of many Browning firearms at the Browning website, under Customer Service.
Contact Browning.
Use the link to date this Browning
1968
This is a 16ga American made Browning made in 1946. auto5man
Go to Browning's site, Support, Date Your Shotgun.
You will have to call Browning to find out.