I have this book . " Vaccination Results in New York City 1914 " by James A Loyster. This book was privately printed and I'm assuming its very rare. I also have a typed letter from James that was originally given out with this book. Ive seen no mention of the letter anywhere.

Ive spent lots of time looking for answers , so far ive only found two other copies of this book , one in the Library of Congress in DC , the other in a Medical Library in TX.
https://www.worldcat.org/title/vaccination-results-in-new-york-state-in-1914-being-a-study-of-fifty-one-cases-with-portraits-and-certain-conclusions/oclc/14787946&referer=brief_results

Can anyone point me in the right direction to find some answers about this book , such as value , rarity , ect ?

Many Thanks.

Lance R-8573