Ah, now it makes sense, maybe...they each had their won 10" covers & when they combined them onto a 12", they used the 10 ""This Modern World" cover...or else, if Rooster's mom had a 10" COG with the "graph" cover, maybe they both had that cover at some point before being combined onto the 12", kinda like Kent's Krazymusik Vols 1 & 2... It must've been confuisn to be a record buyr inthe early-mid 1950s. 78 & 45 singles, 45 EPs, 10" LPs 12" LPs, Kenton & Ellington on the same label, I mean, I feel the angst of the little man on the original COG cover, it's like "What am I going to do with all this....MODERNINITY?"
Yeah, here this is: