Here are some postcards from monasteries and a skete dating the beginning of the last century (1906)
Panteleimon
Docheiariou
Skiti Andreou, sent 1915 (without the main church, the situation before 1900)
Sografou
Vatopediou
Wim, 9/3
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Athos – Agion Oros
If you want to sell any of these postcards please let me know