It sounds like you recently purchased your trailer.
Welcome to the forums!
The 1975 27' International that you have is the same model we used to have. A few photos of the one we had is located here.
Could it be the same one? Well, just a thought!
We had bunks built in it but after we sold it the people who bought it took them out and placed the closet back in.
I hope that you enjoy your new trailer and if you have any questions don't hesitate to send me a private message.
Good luck and happy camping!