Out of 9 purchased pages of the Knights of the Circle style, not a single shield dropped (4 mauls, 2 bows, 2 staves, 1 swords).
Okay, I'm just so unlucky, but I asked friends who also bought these pages. Surprisingly, none of them were able to get this page either.
I opened to the TTC website (unfortunately, we depend on the goodwill of the addon owner and the server, but this is a separate topic). Not a single offer (but 20+ mauls offers).
After that, I'm sure one of the developers changed the drop rates so that no one can get this page.
The same applies to the Chef Arquitius's Lost Thesis (it's being sold for 1 billion!), and to the Khajiit brazier recipe. The motif of Assassin League maces costs 10-15 times more than daggers, and not because it is more beautiful. And the belt motif costs 25-35 times less than the boots motif.
It seems to me that it is time to review these rates and correct the obvious strange parameters for many items.