This collections contains correspondence, advertisements, articles, by-laws, newspaper clippings, instruction, newsletters, and telephone directory about the TTY device for the deaf that was collected by Simon Carmel as he worked for the US Government agency in the metro Washington area.

This collections contains correspondence, advertisements, articles, by-laws, newspaper clippings, instruction, newsletters, and telephone directory about the TTY device for the deaf that was collected by Simon Carmel as he worked for the US Government agency in the metro Washington area.

This collections contains correspondence, advertisements, articles, by-laws, newspaper clippings, instruction, newsletters, and telephone directory about the TTY device for the deaf that was collected by Simon Carmel as he worked for the US Government agency in the metro Washington area.