"The character Bun, learning, above the hole. This coin was cast from the great image of the Buddha, the Daibutsu, which in its time had been cast of demonetized currency, and is supposed to contain a small portion of silver and gold"[S]
This coin is made from a much brighter, yellow metal than the other coins pictured here.
"The character Sa, refering to the province Sado. Cast in 1726. Two specimines, one of which small and written in jaunty style, yet fine [Not pictured]"[S]
"The character Gen, the 1st year of Kwampo, 1741. This was minted at Takatsu, city of Osaka in the province of Settu."[S]
"The character Cho, Nagasaki, cast in 1765, A rather inferior coin."[S]
This coin is actually broken in half.