Japanese Utamaro Prints

I have a set of six, 1790-1792 Utamaro prints approx. 8.5"x12.75" of women.
The names of the prints are "The Fickle Type", "Playing a Glass Flute", "A
Woman Reading a Letter", "Tomimoto Toyohina", "Takashima Ohisa" and
"Naniwaya Okita" all on Mica ground. They are in excellent condition.