back in the day, you have a few models of ibm printers distinguished mostly by duty cycle. you customize via print chains that the operators can change based on what kind of material is being printed. it is possible that an APL chain was manufactured (I've never seen one in the wild, while working with ibm mainframes from 60's to 90's). what IS common is the APL typeball for the Selectric family of typewriters and teletypewriters. I even had one for a few years even though I was only an occasional user of APL, then it got lost in an office move.
so it is more akin to GM creating a special tire rim than a special truck model.
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back in the day, you have a few models of ibm printers distinguished mostly by duty cycle. you customize via print chains that the operators can change based on what kind of material is being printed. it is possible that an APL chain was manufactured (I've never seen one in the wild, while working with ibm mainframes from 60's to 90's). what IS common is the APL typeball for the Selectric family of typewriters and teletypewriters. I even had one for a few years even though I was only an occasional user of APL, then it got lost in an office move.
so it is more akin to GM creating a special tire rim than a special truck model.