In December of 1992, Tom Long started Georgia Marketing & Promotions. Tom's brother Mark came on board and established a dealer network that was the core of GMP's wholesale business. Peachstate has since blended into Georgia Marketing & Promotions: GMP.
GMP was a small company of only nine employees, operating out of about 13,000 square feet in Winder, Georgia. Winder is about fifty miles north and east of downtown Atlanta.
The GMP brand was forced in bankruptcy in April 2011 but restarted production. Their official website http://www.gmpdiecast.com/ is offline.
What's it worth? Take a look at this Gmp price guide: sold listings for a value indication.