The ESP Magician is the first “original” FRT-5 style copy ever made and is seen in catalogs as early as May 1983, around the same time Eddie Van Halen is seen with the USA whale tail during the U.S. Festival. Hence, this is a very early FRT-5 clone and why it’s assumed to be the first. The magician only seemed to last 3-4 months in production.
It features characteristics of the famous “USA Whale Tail,” and being that it was made for ESP guitars, makers of Kramer Guitar parts, there could be some relationship between the two. It features T-block saddles and other early trem characteristics of the time. Thanks to J.L. for the photos and information.