A model J-476 if my chicken scratching is deciphered correctly. Spent way too little time at the ACD Museum in Auburn, Indiana, while on the way home from a family event. While I confess to also electrocuting a bunch of bits, I ran 3 rolls of 400TX through the Perkeo II. What a joy to see a museum website say: "Photography is encouraged and is allowed."
Not really a planned activity, I had no tripod, and no suitable flash, so was on the lower limits of handheld shots, but I think this one is an example of what the medium is about.