What is the value of a 1971 Browning Sweet Sixteen in new condition with the original box?

The correct model designation is Browning Auto-5 "Sweet Sixteen" and the serial number is 71S7136. If in absolutely new-in-the-box condition value will be solidly over $1500. sales@countrygunsmith.net I am looking for one is it for sale? dnbutl@aol.com