There was definitely Ektachrome print stock. We shot a lot of ECO—7252. The lab struck reversal work print from each camera roll. My recollection was that short release print runs were made directly from the A-B original while beyond a certain number of prints it was more economical to print from an internegative. There was never a problem with print contrast with either method since ECO was a low contrast original. We had some older Kodachrome prints around, typically "master prints". These were great for transfers in later years.