The 5100s were made 1931-1941, then changed to model 311. The 410 will bring a hefty premium, but condition is everything. Low end shooter about $250 nice one with good case colors $800.
The Model 620 was produced from 1926-1945. sales@countrygunsmith.net
1000 uSD
15,000 - 20,000 U.S DOLLARS
I don't know what the numbers on the trigger are unless they are a part number, but you can add about 25% to the asking price for a single selective trigger.
50-5000 USD depending on specifics.
Requires professional appraisal.
30,000
value of stevens 410 58b
What is the value of a 1850 colt black powder with ships engraved serial number33700
50-400 depending on specifics
You have a Ranger Model 30, which was a store brand made by Stevens as a Model 520. It was designed by John Browning, and has a slight humpback in the receiver. A Stevens version ranges in blue book value from $190 in 100% condition, to $75 in 60 % condition. Unfortunately, house brand guns bring less.
A metal what? Oh!?! You mean a Medal as in an award. It depends on the several factors. You should identify the MEDAL and describe it. Does it have the soldier's name engraved on it? Does the Medal include the Ribbon that it is hung from? Are both in good shape?