old TOROWARE aluminum baking pan

"TOROWARE, by LEYES NO.2661" aluminum baking pan with folding handles, a kind of large almost 12" x 18" size, basically 'commercial duty' in its construction.

I can't say I've ever heard of that name (and their kinda nifty logo?!) until wiping a *whole bunch* of 'sitting unused on the bottom shelf' dust and grime off of it for the pics here. Still don't know any more in fact, but it certainly does show some evidence of having being used by somebody, someplace, no matter where and how long ago it was first made.