User talk:67.191.101.204

October 2019
Please refrain from making unconstructive edits to Wikipedia, as you did at Optical telescope. Your edits appear to constitute vandalism and have been reverted. If you would like to experiment, please use the sandbox. Repeated vandalism may result in the loss of editing privileges. Thank you. Muffin of the English (talk) 16:14, 6 October 2019 (UTC)
 * If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.