Hi Cordell,

Thank you for contacting Mearto with your appraisal inquiry.
I can't read what the serial number is in the photo but would be happy to include it in this appraisal if you can give it to me in a comment. It looks like there is an abrasion to the front, which I've factored into the value of this. If that's not the case, this would have a value of $1,500-2,500.
Based on the photos and information provided, and subject to examination, this is:

A near vintage 2000 Gibson "Master Model" F5G sunburst mandolin
with mother of pearl head, back of tiger maple.
CONDITION: appears to be in very good condition
PROVENANCE: gift to the 2000 winner of the International Mandolin Championship in Winfield Kansas.
$1,500-2,000*
*represents a fair-market value for auction purposes; retail or asking price may vary.

Please let us know if you have additional items to appraise, and thank you again for using Mearto.