Go to Browning.com They have a sn function under customer service.
Check Browning's web site for how to decipher the sn.
Try the barrel, action, breech
Check Browning's web site. They have sn data.
Browning did not break down the serial numbers of the hi-power from 1945-1954.At the end of 1954 they had made 72,250 guns and then started to register there serial numbers with production in 1955.Your browning high-power falls into the production of guns from 1945-1954,I am sorry but that is the best that I can do.
Contact Browning Customer Service through their website. The can give you date of manufacture. They ARE still in business, making very nice guns.
Try these folks - http://www.midwestgunworks.com/page/mgwi/CTGY/browning-gun-parts
Unfortunately, production dates of pre-WW 2 Browning guns is strictly guesswork. Loss of most production records due to the war. Sorry- but great guns!
Need serial number to determine any guns date of mfg.
for belgian guns, the serial # that would start 76X xxxx "X" stands for Magnum 20ga. auto5man
On the trigger guard. Visit Browing's website to decipher the code. Not the trigger guard! For Belgian guns you can find it under the receiver, just forward of the open area with the carrier. For American made Auto 5's, it is on the left side of the receiver starting with an A, B or C. auto5man
From the start all browning guns were made by FN of belguim for browning between 1903-1975.After that all guns were made by Miroku of japan.
This is what is called an American Browning. These guns were produced by Remington in the US (New York) for Browning after Belgium was overun by the Germans in WWII. The guns were made using Remingtons model 11 equipment. A few modifications were made to incorporate more of the Browning features and were all stamped Browning Arms Co. St. Louis Mo. Your gun serial number isn't correct. The highest 12ga serial number made is B43129. You probably have one too many digits in your number listed. Please check and ask again. Thanks.