The Vintage A.J.S Instruction Book is a single cylinder motorcycle manual from 1937, specifically covering models 16, 16S, 18, 31, and 31CSR OHV. Published by AJS in the United Kingdom, this paper-based book provides detailed instructions and guidance for owners of these specific A.J.S motorcycles. With a year of publication in 1936, this manual serves as a valuable resource for enthusiasts looking to learn more about the maintenance and operation of these classic bikes.