Mu (μυ) 12th Letter of Greek Alphabet

GREEK SMALL LETTER MU

i found these stone tablets someone from my past but can't read them. I think they look like ancient Greek letters but not sure of it. Anyone help to identify them.

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File:Greek lc mu.png - Wikimedia Commons

μ - greek small letter mu - ASCII Code

Greek Scroll Twelve minor prophets Nahal Hever 50 BC: Septuagint Translation of 8HevXIIgr

Greek letter mu hi-res stock photography and images - Alamy

Greek alphabet - Wikipedia

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