I am a Trumark collector.
My first slingshot was an FS-1, about 50 years ago. I remember ordering it from an ad in the back of a magazine or comic book. It came with a single white marble. I could not hit anything with it, but had fun stumping in the woods launching stones, trying to hit random objects. I left it with a bunch of stuff when I went to grad. school. Hopefully someone found it and put it to good use.
Trumark stayed in the US when all the other manufacturers went overseas. Its plant was in Boulder, CO - the liberal capitol of the universe. It went out of business a year or so ago.
Trumark also had a lengthy court battle with Saunders over the use of the trade-mark "wrist rocket." The case wound its way through the federal court over a 10 year period with a trial, an appeal, an additional trial and another appeal. Saunders unsuccessfully petitioned the US Supreme Court to consider its case. Interestingly, Saunders admitted that Howard Ellenberg (Trumark's founder) invented the wrist-braced slingshot, but claimed that it developed the market and was therefore entitled to the trade-mark "wrist rocket." The courts eventually rules that Saunders could use the trade-mark exclusively in some states and Trumark in others. It seems that Trumark abandoned the right to use the trade-mark and Saunders now refers to its slingshots as wrist-rockets.
