Yes, at one time Disney had 'resort specific' cards. They were much thinner than the cards out today. The Fort Wilderness card was issued in 1990 and we were actually given 2 cards....1) was specifically for 'Transportation' throughout WDW.....back then, you actually had to SHOW your card before they let you onto any bus, boat or monorail....that or your 'ticket'....2) not quite sure why we were given this second card since no info was on it... notice in the picture, everything has XXXXX's on it? Back then these cards didn't have magnetic strips either.....I can guess and say that maybe we used it to get into the EMH nights....back then, resort guests could pay a fee for this perk (approx. $10) and it was well worth it for us and we had the park literally to ourselves....those days are gone now that EMH is free to ALL resort guests!!!
We also have a Dixielandings (now POR) card from 1992 so I believe it was that year or shortly there after that they started using the thicker, credit card like 'generic' cards for all resorts.