The Merck Veterinary Manual second edition 2nd 1961 issued tabbed reference physician book is a valuable and sought-after collectible item for those interested in veterinary medicine. Published by Merck & Co., a reputable pharmaceutical company in the United States, this book provides valuable information and guidance for physicians and veterinarians alike. With its authoritative content and historical significance, this book is a must-have for any collector or professional in the field.