Probably not any left in existence, because....I couldn't find many like them on eBay.
1. I shot 128 with those @#$%^ blades and they now reside in the bottom of the pond on #18.
2. After tying them to my rear bumper to give them a lesson the way home, evidently the are scattered over the entire 20 mile trip.
3. I put them out for the trash man. Before he could pick them up, the local restauranteur stole them and is using them for butter knives.
4. Tiger Woods bought them all up and hands them out to girlfriends so they won't ruin a perfectly good 9-iron the next time he cheats and they smash windows in his Escalade.
5. PaPaD can't walk past a set as he makes his PIAS daily rounds and, even tough won't admit it, has 271 sets of these in his garage.
6. North Korea has bought them up, welds them to their nuclear warheads, assuming if the radioactivity doesn't kill you the sharp top lines of these clubs will.
7. The last 500 sets were given out as prizes during the 1988 American Horticulturists National Convention for use as tomato stakes.