Touchstone from Teheran, Iran, 1974
1974
Touchstones from Mysore, India
1995
Touchstone from Salalah, southern Oman, 1994
unknown
Natural pebble touchstone from Izmir, western Turkey, 1986
1986
Touchston from Wakayama Prefecture, Japan, 1990
1990
Touchstone from Czechoslovakia, 1978
1978
Rectangular touchstone from Izmir, western Turkey, 1986
1986
Touchstone from Germany, 1995
1995
Touchstone purchased in the bazaar, Istanbul, 1987
1987
Touchstone from the souk in Mutrah, Muscat, Oman, 1994
1994
Touchstone purchased from a street trader in Hyderabad
1995
Touchstone formerly used at the Royal Mint
Circular touchstone from the bazaar, Istanbul, 1987
1987