zisha yixing dragon fish purple clay teapot

hi! this is a pic of the other purple clay zisha yixing teapot that i have...it looks like there might be a seal mark on the underside of the lid but i can't make out what it says. on the topside of the lid there is a moving dragon head. the head moves in and out when pouring tea. cool hey :) on one side of the teapot there is a dragon and on the other side there is a fish...i have had this one for awhile and really need to start doing some research on it... i don't know if it is new or old...i will update my post when i get more info...thank you for looking and i welcome any comments or info....love this site!