Codes used in several countries
WF on a licence plate
WF is an area code in 3 countries. The plate's style and country code tell them apart.
Germany
WF-AB 1234Code details →Wolfenbüttel (Lower Saxony)
Poland
WF 12345Code details →Warszawa (Masovian)
United Kingdom
WF51 ABCCode details →Exeter (West of England)