Cuba 1970/71 Christmas (Navidad) Birds Postage Stamp Souvenir Sheets

A set of three distinct souvenir sheets issued by Correos de Cuba for the 1970/71 Christmas (Navidad) season, featuring avian themes. Each miniature sheet is printed on white gummed paper and contains various perforated postage stamps and decorative labels. The sheets are displayed on black protective mounts. The artwork utilizes a multi-color lithographic process, depicting various bird species with scientific and common names printed in Spanish, such as the hawk and green parrot seen on the upper right sheet. A consistent design element across all three sheets is a decorative holiday label depicting golden bells with a red ribbon. The sheets include marginal markings, such as the serial number '00198' on the upper right sheet and plate numbers '1' and '2' on the other two. The perforations appear intact and well-aligned, indicating they are in unused, mint condition (likely Mint Never Hinged). The colors remain vibrant with no visible foxing or significant corner creasing, suggesting the items have been well-preserved away from direct light. These pieces represent the Cuban 'Navidad' series, which often combined botanical or zoological illustrations with traditional holiday motifs during the late 20th century.