At least over here in the EU coins were later substituted by magnetic phone cards; iirc in the late 80s, presumably as a measure against vandalism and theft. Wh

At least over here in the EU coins were later substituted by magnetic phone cards; iirc in the late 80s, presumably as a measure against vandalism and theft. When phone booths were later decommissioned, all those cards became collectibles and still have a market online.