"Heriba moulded triangle nylon pick, soft version" (hard version is blue and pictured below in all three available shapes).
Dieser Herr here invented it:
Herbert
(i) Bauernfeind (geddit?) did his firm accounting on a Sunday in 1979 when a Starfighter or Phantom crashed crashed into his plant. Dead. His widow and two sons continue the firm to this day.
I can send you dozens of these. For free. They were my preferred pick for decades (couldn't for the hell of it play with any other pick, I was competely addicted and stocked them in the hundreds in terror production might stop one day and I'd run out of them!) until I switched to the (slightly harder, but as thin and still elastic) black version "Heriba 115" that is also triangular and has "nylon" embossed on it
though it is made of another material (some vintage plastic other than nylon they tried to recreate). Now I stock hundreds of these -
-, they're the black triangular pics you always see stuck under the strings of my basses (these picks being regularly stolen by Doug Fyghter's Dutch friends!!!)
As I said, I still have a large number of the grey ones, all NOS, good thing I never threw them away. Mail me uwe.hornung@cliffordchance.com your postal address and you'll have enough to last you a lifetime, even if (hopefully!) no Phantom or Starfighter ever crashes into your house.
And ever the villain, I'll send you a couple of black ones as well, just to get you addicted too ...