Rotunda and Autolite were Ford brand names, but Autolite got sold out, and Rotunda was kept around for a while longer. FoMoCo came in about the same time, mid- to late 60's, IIRC.
Rotunda is still used by Ford, all the tools in the tool catalog say Rotunda and they all come in a Rotunda marked plastic box. Even the electrical tools have a Rotunda sticker on them no matter who made it.
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