colors
sentoku: it is colored by boiling in a mix of green rust and copper vitriol
shikin: it is colored by leaving it in a mix of Potassium sulfate after burning tin into the surface of copper
gold compounding: it is colored by burning tin partially into the surface
silver: it is colored by burning tin into the surface of copper at low temperature and changed to warm silver
natural copper: it is colored in a natural way and it becomes medium brown with time
 
sentoku
shikin
gold compounding
silver
 
natural copper

Hammering patterns
1- hammer texture
2- rough texture A
3- rough texture B
4- rough texture C
5- rough texture D
6- mesh texture
7- pear texture
8- straw mat texture
9- rough texture E
10- pebble grain texture (large)
pebble grain texture (medium)
pebble grain texture (small)
 
11- rough texture F
12- hexagonal pattern