Codes used in several countries
PM on a licence plate
PM is an area code in 4 countries. The plate's style and country code tell them apart.
Germany
PM-AB 1234Code details →Potsdam-Mittelmark (Brandenburg)
named after Potsdam, Mittelmark
Greece
PM-1234Code details →Drama
Spain
PM-1234-ABCode details →Balearic Islands
named after Palma de Mallorca
No longer issued
United Kingdom
PM51 ABCCode details →Preston