CANCELLATIONS: The collection on covers (c.200) and pieces/loose adhesives (hundreds) covering a wide range of topics and including Airmails, Datestamps (a wide range of types - mostly village offices), Georgetown (a study of types), Instructional marks, Parcel Post, Railways/T.P.O., Registration and U.S. Forces. Also a selection of Guyana commerical correspondence. A fine lot worth careful examination.