without a model number and condition it is hard to tell. sound like the high standard made for sears. value in very good condition is around 125.00 depending your market. good luck
350
400
100-300 USD
$317
50-150 USD
The standard pricing is from $100 to $1500. The value may vary depending on the condition of the 12 gauge.
In "good" condition the gun in question would have an approximate retail value of $125.
From your description the coin is a Americain Silver Eagle that is made from one ounce of 99.9% pure silver, value as of today is about $19.00
The approximate value of your coin according to Numismatic News Coin Market Monthly Price Guide for March 2007: 1990 Silver Eagle = $18.00
If your shotgun is new in the box(unfired) then between 275-310 dollars.
Iver johnson silver shadow over under 12 gage
1971; value could be between 100-1000 depending on the exact model and specifications.