TuckDB has Fair Isle cards places as being in Shetland, Orkney and in Caithness. Fair Isle is remote and about halfway between Shetland and Orkney.
The correct places is Scotland - Shetland
https://pa.shetland.gov.uk/online-applications/simpleSearchResults.do?action=firstPage
The following cards need amending:
https://tuckdbpostcards.org/items/80725
https://tuckdbpostcards.org/items/79880
https://tuckdbpostcards.org/items/84457
https://tuckdbpostcards.org/items/60090
https://tuckdbpostcards.org/items/60102
https://tuckdbpostcards.org/items/64463
https://tuckdbpostcards.org/items/74579
https://tuckdbpostcards.org/items/64473
https://tuckdbpostcards.org/items/61957
https://tuckdbpostcards.org/items/127315
https://tuckdbpostcards.org/items/85204