Please explain what you mean specifically by "Pattern"
Browning, Remington
That is an 'American Browning' produced by Remington during World War II.
A semi-automatic shotgun built on the A-5 pattern.
Yes, Browning has made them.
You have an Amwerican Browning made by Remington for Browning during WWII. It was made in 1947.
$350
what is the market value of a remington 20 gauge semi-automatic sportsman 58 shotgun?
100-1000 usd
It is the lightweight version of the Browning Auto-5 semi-automatic shotgun.
100-300 USD
Your serial number indicates that your Browning auto-5 16 gauge shotgun was made in the year 1947.
50-500 usd