Louis W. Sauer Signed Card Autographed Signature Doctor Whopping Cough Vaccine

Description

Up for sale is a signed 5.5 x 3.5 inch thick paper card, boldly autographed by the doctor who developed the Whooping Cough vaccine, Louis W. Sauer.  An exceptionally scarce autograph of a great man.  Also includes the small note shown below with content that is written by Sauer as well involving Whooping Cough.
Autograph was part of the well known single owner, original "Roger Harris" collection of thousands of
autographs, acquired over many decades of collecting.
I welcome questions and offers on the autograph, and can typically respond to your questions or offers within an hour or two.  Shipping and handling will be
via USPS, I ship out within one day of payment from the winning bidder.  Bu
y with confidence, I have 100% perfect feedback and have been an eBay seller of autographs and memorabilia for over eighteen years.