My first potato peeler (Sparschäler) I got this Sparschäler 10 years ago already used by my grand mother. It is still a mass product and you can buy it for round about
Famos Peeler – The Good Liver
Famos' Economy Peeler — Thorsten van Elten
Amazon.com: Westmark Peeler, 11.5 x 6.5 x 1.3 cm, Silver: Home & Kitchen