User talk:Martinlisa4828

Welcome to Wikimedia Commons, Martinlisa4828!

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-- Wikimedia Commons Welcome (talk) 21:39, 15 September 2019 (UTC)

Reverting of Hubble mirror polishing image

Can you explain the rationale for reverting File:Hubble_mirror_polishing.jpg to the black and white version? TD-Linux (talk) 20:41, 4 June 2020 (UTC)