Ours is still used. When the Post Office built the first Post Office in suburban Johnson County Kansas (outside Kansas City) in the early 50's and transferred all the mail for northern Johnson county from the main branch in Kansas City across from Union Station there were a half dozen small towns adjoining each other. They built the Post Office in Mission and designated that all addresses in these half dozen towns become Shawnee Mission even though no city by that name existed. When the Zip Codes came around, residents could use the actual name of the city that they lived in however the Post Office continued to accept the Shawnee Mission designation. More then once in the past few years I have had businesses cancel my order because they only recognize the actual city I live in or vice versa the Post Office name. Their computer systems cancel the order if it does not exactly match what their computers say my address is.