I have been in the industry since 1978 and they way predate me. The ones that I used were made out of a compressed fish paper which is highly fire resistant. Frequently connected with a brass ring to whatever it is they were marking.
They came in a kit with ink and a stencil to hand lettering the tags. Kinda like leroy lettering. Very durable. Best Regards, Chuck McCown McCown Technology Corporation 8401 N Commerce Drive Lake Point, Utah 84074 801-250-9503 Office www.microtrench-blades.com <http://www.microtrench-blades.com/> www.mccowntech.com <http://www.mccowntech.com/> www.terabitnetworks.com From: AF <[email protected]> On Behalf Of Adam Moffett Sent: Monday, June 30, 2025 12:00 PM To: AnimalFarm Microwave Users Group <[email protected]> Subject: [AFMUG] Question for old phone guys - Why 145P tags? How long have telcos been using these 145P tags, and what's the origin story? I see them called out in some specs. The manufacturers' pitch is that it's "non-metal" and "fiber-based" to make it safe around electrical installations. I see the installers are tying the 145P on things and then printing out a label on their label printer to stick onto the 145P tag. If the printed label is acceptably "non-metal" and safe around electrical equipment, then why did you need the 145P tag? Why not just print out a wire marker label? I'm speculating that these come from a time when you couldn't just print out a plastic label on demand, and you could tie this onto the cable and write on it with a marker, but I have no basis for that other than they don't seem to make sense any other way. -Adam
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