You will notice I have a fair amount of 1950's - early 60s LP's with no sleeves. Most of these were my mother's. She had these metal travel cases (I'm sure you've seen them, they were turquoise with a white top, I'll try and link to a picture of one)that held 24 albums. They came with dividers however, to hold 36 without the sleeves. Now I won't say my Mother is (she's still around, even though she's 90 years old this year [2015]) "Cheap", but when she discovered this, the sleeves unfortunately went away so she wouldn't have to buy more cases.