"Zonca 1607, watermill & edge runner"
"Zonca 1607, water powered edge runners"
"Heckington"
"Heckington"
"Heckington"
"Bourn Mill, Cambs, Stones, horse, etc"
"Wicklewood Windmill, Norfolk, grindstone"
"Scheider Paper Mill - Kollergang "
"Scheider Paper Mill - Kollergang "
"Copenhagen O.A. Museum Mill grindstone"
Stow Mill, Norfolk, millstones
"West Kingsdown, stones & framimg"
"Barley hulling - Het Prinsenhof, the Stones"
"Zaan, Barley hulling stone, Mill Museum"
"Gozo windmill milling chamber"
"Gozo windmill milling chamber"
"Gozo windmill millstone"
China - Kaili. Ping Liang. Kollergang in use.
China - Sanshui - Jie Pai Mill Ox Kollergang. Bamboo
China - Kaili. Ping Liang. Vat & Kollergang in river.