[GreenKeys] 1/2" wide tape - what for?

[Nick England]

What was this 1/2" wide tape used for?
https://www.ebay.com/itm/403254065206
I have seen 3/8 tape for tape printers and 15/32 for Wheatstone perforators
(and of course wider tape for 5-level perforators)

Nick England K4NYW
www.navy-radio.com
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