Yup, I'm guilty and should know better; my offering re typewriter lens was under a non-related heading. Anyway, there was in fact a model for the IBM model D typewriter with the moving carriage. I liked it better than the selectric because one could more easily position the paper to fill out forms as well as reading what was already typed. It had two thumb screws on the front for horizontal and vertical adjustment. The one I had melted down along with my optacon and some other adaptive equipment, like a versabraille (the original model) in an office fire. One of my buds said he almost cried when he looked into my office during recovery attempts afterwards. My adaptive equipment was a series of blackened metal and blobs. Doug: Much More than Just a Flash in the Pan Mickey, There are or were two versions of the typewriter lens. There was the one for the Smith-Corona electric typewriter which attached to the carridge. The other was for the IBM Selectric typewriter. In that version, there was a little rod which hung down and you would adjust the lens alignment so that the rod was right above the little pointer which moved as the IBM Selectric Typeball moved down the line, as there wasn't a moving carridge per se in the Selectric versions. To unsubscribe at any time, just send a message to: optacon-l-request@xxxxxxxxxxxxx with the word "unsubscribe" (without the quotes) in the message subject. Tell your friends about the list. They can subscribe by sending a message to: optacon-l-request@xxxxxxxxxxxxx with the word "subscribe" (without the quotes) in the message subject.