South El Monte Disc

Hello out there I have a question?? I just acquired a hinged offset disc made in 60s 70s or 80s I bought it form the 4th owner he was told it was made by a company in South El Monte, California it has no tag on it so I can’t tell who built it Does this sound familiar to anyone does anybody have any information to add.

Yes, The company was Commercial Lot Cleaning. They are out of biusiness. The company was closed down in the late 80s or early 90s. I have four of those discs. All of there equipment was Internationals. Trucks, wheel tractors. rubber tire loaders, for crawlers they used TD9s then upgraded to TD9Bs. When IH quit making the TD9s, they went to Cat. They bought two D4Ds and a D4E SA. I bought the D4E SA and one D4D. The other D4D went to Mexico I am told.