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Keywords from Image Description:
RM Suomenlinna marking. en Imperial Russian inch model coastal mortar in Suomenlinna Detail of manufacturer marking fi Venlinen mm rannikkomrssri vuosimallia Suomenlinnassa Valmistajaleiman yksityiskohta ru own MKFI region FIheading NNW mm coastal mortar Fortress of Suomenlinna Kustaanmiekka Taken with Canon PowerShot