The Ruch catalog of postage stamps of Poland, officially titled Ilustrowany Katalog Znaczków Polskich, contained detailed information on Polish postage stamps, and was published on a yearly basis.
The purpose of the catalog was to describe postage stamps related to the country of Poland and to estimate their value in the philatelic market at the time of publication.
The catalog contains black and white illustrations of polish stamps, cancellations, and overprints.
The catalog covers the full extent of Polish philately and is comprehensive in the following categories.
However, previous yearly editions provide a valuable historic and philatelic resource.