Paper tape programming tool

We all know how programming is done these days. But it has not always been so. I was first exposed to programming (BASIC) on a Tandberg desktop computer in 1979 (I think), but even then the screen and keyboard combination was a fact.


Was there anything before that? Well certainly - there were paper tape and punched cards. I have never used such technology myself, but I have the device in the picture in my posession. It consists of some pieces of aluminium that have been machined to work as a primitive programming/repair tool for paper tape. The actual holes were made with a broken off screwdriver in the lower right.
This device was a write-only tool on its own. But I guess anyone using it would also have a suitable reader as well.