These 750 and 800 line catalog sheets are both interesting variations of previously posted sheets. This 800 line catalog sheet showcases a full 9 masks with the inclusion of the "Wide" Frank, as well as an alternate photo of the Mr. Hyde mask. This Hyde photo was pulled from an ad that frequently ran in Warren publications like Famous Monsters of Filmland, Creepy, and Eerie. I'm not entirely sure which catalog sheet ran first, the one featured here, or the one previously posted here.
The 750 line catalog almost certainly is an earlier version of this catalog sheet which featured the "Jawed" mask.