Steve, the sets from Legendary are white-bordered. The issue in question was borderless. The uncut sheets were not oversized and cut down. They had very slight borders between four-card groups but were otherwise full bleed borderless in the four-card groups, so no card would have more than a very slight border on two sides. Here is an example of a typical sheet:
Also, as far as I know, they would never adjust for other company machines. There was no competition by the 1950s anyway. Mutuscope closed down in the late 1940s and its artwork went to ESCO, which reconfigured the girlie artwork so it could issue several card series in its size. Here is an example, with the ESCO product being the larger one:
