Wang 703 Paper Tape Editor
This is the 'table-top' version of the Wang 703, which essentially provides an 8-level punched paper tape reader for allow data to be read into the Wang 700-Series calculator from punched tape.
Wang 703 Advanced Punched Tape Data Editor
Image Courtesy Serge Devidts
This appears to be an enhanced, rackmount version of the earlier Wang 703 pictured above, adding a punchboard and switch settings to allow for configuration of tape blocking, delimiter, and other functions which gave the device diverse options for properly formatting the data for proper ingest into the Wang 700-Series calculator