Search Engines Online
Postcard identification is part of the fun of collecting. So you have a postcard in your hand. But you do not know where it came from based on what details are provided.
Well by entering those few details in a search box, in a second you can find information which will loet you know where it came from.
Sometimes with a foreign card, substantial details may be provided to aid in your effort.
Also when a postcard to commemorate a historical event, the search results will inform you to your curiosity.