I've just found amongst my stock 2 reels of Cinemaster perforated recording tape (it looks a little bit like 9.5mm film with a hole down the middle), it says on the box the length is 600', the type is18/3 3/4, it also has the name of Craven Instrument Co. on it as well. The tape sits on a 200' STD.8 reel, and each reel is full. I have no idea if anyone is using this type of tape today, but if you'd like to make me an offer for the 2 reels (postage would have to be extra), I'd consider any offer made. Otherwise I'll have to dispose of the tape, as the 2 STD.8 reels are of more use to myself.