I'd get a second opinion or check for yourself with the BB lock ring. I've have several LBS's tell me my Record HF BSC was ISO, also a (knowledgeable seller) at a swap meet told me there's no such thing as French Italian BSC or ISO and they're all the same. I put an ISO FW on an 80s Campagnolo low end BSC but that was my decision as I wasn't precious about originality.