Yep, looks like it might be along the same lines as the Diamond Gem 1/1s.
https://www.eastvalleytribune.com/sports/more-groups-join-1-of-1-market/article_d147fdcc-503b-517b-bc69-c611a6e3ec00.html
Also found this blurb: "Project Backpack is a nationwide program whose objective is to provide backpacks containing assorted school supplies for underprivleged students.
As a fund-raising event, they produced many sports cards in a special limited edition series, the sales of which supported the program.
Each card is a one-of-one, gold foil stamped on the front with their official logo and the designation "Project Backpack 1 of 1." At first glance, the logo may look like a map of South Pacific islands, but it is an outline image of two students."
On this site: https://collectingichiro.com/pb.htm
Glad I only paid a couple of bucks for it about back aroud 2004ish.