Dr. Seuss Antique original books

The first book is "Hop on Pop" it does have a name written on the front page. The copyright date is very old 1963. Other than the name written in the book it is in excellent condition and not missing any pages. The second book is "The foot book" This book is in near mint condition and has a copyright date of 1968. It is complete with all the pages and no writing inside the book. The third book is "Hand, Hand, fingers, thumb. Very good condition no writing inside the book and has all the pages this is also a very old book copyright date 1969. The fourth book is "Mr Brown can moo! Can you? The only issue with this book is there is a name written on the first page. And it has a copyright date 1970. The fifth and sixth books are the same. They are titled "in a people house " there is no writing in either of these books and they are complete with all the pages. The first book is in excellent condition. The copyright date is 1972. Almost all these books can fetch $200/$500ea