John,
Near as I could tell it appeared to be 1/72nd scale. The actual ship has been reworked and modified several times over since WW2. I served on Her as a flight deck "Trouble Shooter" attached to VA45 Detachment 1 (A4-E Skyhawks). Nothing quite like sitting in the cockpit on the No. 1 elevator, riding the brakes while being jacked for a starboard main mount change. All the while Recovery ops are being conducted and the arrested aircraft are coming to a halt less than 20 feet away! My first Cruise was to the North Atlantic and Jolly old Portsmouth was on our Port of Call List. Yes, I did take a train to London, found a great hobby shop and Purchased the latest Minitanks Manual for 74p. Still have it! Last of all and the best part of this dissertation is the USS Intrepid was not scrapped after Her decommissioning.. She is now an Aviation Museum and is tied up in the New York Harbor.
Cheers,
Rick H.