Thanks Jim. I think I've got it sorted now though - the confusion seems to be partly because velobase isn't 100% accurate, and I have always thought that the BB I have is the BB-33RECART. I just checked the campagnolo catalogues, and I think it goes like this:
1992. BB-01CART/BB-03CART (italian/english thread) is the only cartridge BB on offer. I didn't check earlier catalogues, but in 1992 it's the only one listed, and is the same for record, chorus and athena groups. note the lack of "RE" in the model number, meaning they haven't given it "record" status. There is no mention of triple bearings. (in the same year, loose ball BBs did have RE, CH and AT denominations, meaning they were different for each group). Velobase has this listed incorrectly as BB-01RECART, yet the catalogue scan clearly shows it as BB-01CART.
1993. the cartridge BBs are BB-11RECART/BB-13RECART, for record and chorus groups. 111mm, triple bearing. athena uses the BB-01CART/BB-03CART. loose ball BBs are as in 1992.
1994. I can't find any model numbers in the (german) catalogue scan in the RB archive, but things appear to be the same as 1993.
1996. not sure of model numbers, but record and chorus both have 102 and 111mm cartridge BBs listed. record now has the carbon sleeve.
1997. BB-31RECART/BB-33RECART are shown in the spare parts catalogue. no length is mentioned, but I assume 102mm.
I didn't check catalogues, spares, and tech docs for all years, but it seems like there are two triple bearing BBs - the first, 111mm, and the second version 102mm. I'm not sure about the second version though, as by the time record was using a 102mm spindle, I the record BB had a carbon sleeve.... as ever, with campagnolo it's not straightforward!
I am now certain though that the BBs I have, which I thought were the "33" model, are actually "03", as they are 111mm and not 102mm. That's what I get for relying too much on velobase I suppose!