Pandemic boredom led me to amassing about three boxes of books (most of them still not read) and I noticed in reorganizing them and cataloging them that many had some intriguing bookplates. And here they are for your viewing pleasure...
One of the many popular bookplates from the famed Antioch Bookplate Company in Yellow Springs, Ohio. I've seen multiple copies of this bookplate in dozens of books (from obviously various owners) I've either owned or perused over the past twenty years.
I wish I knew who this artist was. I see the initials LCD at the edge of the book.
Another coat of arms, but rather simple compared to the Holmes one.