Authentic Yixing teapot

[Fwah Jeffery]

Hello, I am Jeff from Singapore. I do have a small collection of Yixing teapot.
Can someone help me to verify its authenticity or is there any other source which you could direct me please. I brought this in the mid eighties and it come with cups,saucer and holder.
Many thanks

[ShuShu]

You should try to get a copy of the "Early teapot encyclopedia II" by Chilin Lu. He is a famous expert from Taiwan. Try to find him on Facebook. It depends on the period but you can find there images and explanations that may help you.

[Fwah Jeffery]

Thanks ShuShu on the valuable info. I was struggling for awhile and not making any headway. I am simply delighted .