User talk:79.26.237.23

December 2017
Hello, I'm Jim1138. An edit you recently made to Indoor positioning system seemed to be a test and has been removed. If you want more practice editing, the sandbox is the best place to do so. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. Jim1138 (talk) 09:48, 24 December 2017 (UTC)