Yes, really. Before I got my B.S.E.E. I was working as an engineering tech to pay for my classes. We used Ty-raps in the electronic boxes we were building at the time in the oil patch. Before that all of the ties were with flat, black cord. They were misery. Ty-raps were saviors to me! ;-)
As an aside, the day I brought my sheepskin to my boss my pay immediately, literally doubled and he said, “Now get back to work,” and I never had to touch a Ty-rap ever again! LOL
the point was ‘circa’ .
are you an Electrical Engineer or an anthropologist?