I think there's a typo problem here. The Cutty Sark, for a number of years, operated as a schoolship under the Portuguese flag with the name Ferreira (that being the name of the shipping company that owned her).
I think Revell instructed customers not to cement the skylight top into place in order to make it convenient to see the "interior detail" underneath. There is indeed a simplified representation of the saloon table and benches there. "Operating features" were a big deal in models of 1959. In its first release the kit also included gears to make the steering wheel turn the rudder. That first release also had portholes molded in the hull sides. Revell apparently learned pretty quickly that that was a mistake; the ports had been added to the ship in her schoolship days, and were retained for many years while she was a museum ship. She had them all five times I've visited her - in 1978, 1987, 1991, 1992, and 1994. As I understand it they were removed during the most recent restoration.
Youth, talent, hard work, and enthusiasm are no match for old age and treachery.