The 1975-76 O-Pee-Chee (OPC) WHA Hockey wax box is a prized collectible from the peak of the World Hockey Association (WHA) era. This box contains 48 wax packs, offering a chance to pull cards featuring legends like Gordie Howe, Bobby Hull, Mark Howe, and many others. Unlike Topps, OPC produced WHA-exclusive sets, making these cards unique. Among the four OPC WHA unopened boxes from 1974 to 1977, the 1975-76 box is by far the most difficult to find, making it highly sought after by unopened hockey collectors.