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I wonder if anyone can read the seal marks on this Green Yixing 20th c Teapot ?

Thanks for any help.

Vic

Further images.

one mark reads 紫砂藝苑 "zisha yiyuan", which is a company name, their website is below, but when I click on the page indicating their artists am told by Google that it contains malware, so I would avoid it.
http://www.zishayy.com/

the characters on the other mark are indistinct to me. late 20th century teapot I should think, perhaps more recent.

Thank you very much Rat,much appreciated.

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