compendium
131Compendium of postage stamp issuers (Qa - Qz) — Each article in this category is in fact a collection of entries about several stamp issuers, presented in alphabetical order. The entries themselves are formulated on the micro model and so provide summary information about all known issuers.… …
132Compendium of postage stamp issuers (Oa - Oz) — Each article in this category is in fact a collection of entries about several stamp issuers, presented in alphabetical order. The entries themselves are formulated on the micro model and so provide summary information about all known issuers.… …
