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Keywords from Image Description:
Ordnance BL . inch equilibrator detail Hmeenlinna. en British Ordnance BL inch medium gun in Hmeenlinna artillery museum Not used in Finland acquired as museum exchange The museum gun is BL Mk NL RGFD Royal Gun Factory Detail of equilibrators fi Englantilainen tuuman mm kanuunahaupitsi Hmeenlinnan tykistmuseossa Saatu museotykkien