I refer to Betta's post requesting assistance with translating a certificate of authenticity describing a teapot made by the master Cheng Jianming.
I have a teapot made by Cheng accompanied by a similar certificate.
The translation refers to three seals, to my disappointment the larger of the seals appearing on the certificate does not appear on my teapot and I want to know if I should be concerned about this omission. The underside of the pot is delineated by lines which segment the teapot's ornamentation and this may have prevented the application of the artist's chop. The omission of the chop,to my mind at least, also means it is more difficult to associate the pot with the certificate.
I would appreciate advice on the significance of the seal's omission.