automatic 4 shot serial number is 1kg182.
50-500 USD or so
50-460 USD or so
If we are talking about a Browning auto-5 shotgun in 16 gauge?Then the serial number that you provided indicates that your shotgun was made in the year 1950.
You need to contact a professional who deals exclusivley with Brownings. What you describe, if done by Browning, was a custom order and it's value could be more than a small nation's GDP.
$350-$650
Made in 1950. Value depends on whether it is a Sweet Sixteen or a standard weight, originality, and condition. A mint condition original Sweet Sixteen would bring well over $1000.
500 USD
1950's-1960's
This Shotgun was made by Stevens their model. 520. Made from 1930's to 1950'S Although the shotgun was Browning patent marked, it was not made by Browning.
This is a Browning Auto-5 Shotgun, 16 guage made in 1950. It is chambered for 2 3/4" 16 ga shells
1950 sn range 285001-315000 per Browning's web site.
It was made in 1950