User talk:Oalwiki

January 2022
Hello, I'm DVdm. I wanted to let you know that one or more of your recent contributions to Optical instrument have been undone because they appeared to be promotional. Advertising and using Wikipedia as a "soapbox" are against Wikipedia policy and not permitted; Wikipedia articles should be written objectively, using independent sources, and from a neutral perspective. Take a look at the welcome page to learn more about Wikipedia. Thank you. DVdm (talk) 14:47, 17 January 2022 (UTC)