CANADA QE2 ELIZABETH DEFINS 1960 AYERST COMMERCIAL FDC +ORIGINAL LETTER+RX CARD

AYERST LABORATORIES WAS A PHARMACEUTICAL LAB THAT SENT PROMO MAILINGS TO DOCTORS USING FIRST DAY COVERS TO PROMOTE THEIR DRUGS.

WITH PRESCRIPTION CARD FPR NEW DRUG PERMARIN

THE AYERST LOGO IS ON THE BACK FLAP OF THE FDC AND THE LETTER TEXT TIES IN THE TOPIC OF THE FDC TO THEIR LATEST OFFERING. SINCE THESE WERE MAILED TO NON-COLLECTORS FEW SURVIVE