Guys -
Can anyone direct me to any source of information about the stamps (chops, zhuan) on Yixing (and non-Yixing) zisha teapots (chahu). All I know is there can be up to three of them - manufacturer on the bottom, master's last name on the handle and master's given name inside the lid (all but the bottom one can be omitted). Sometimes there is a number, not a character for last name, as I have seen several times. Most of the time the one on the handle is missing. I have one chahu where there are three stamps inside the lid and not one on the handle. I was also told that there can be two stamps on the bottom - one for the quality of the zisha and one - manufacturer's.
However none of the above came from any "official" sources, so... I am looking for a catalog (if there is one) of these stamps or for any info on them. The language of the publication or a web site does not matter.
Thanks,
Sasha.