Vintage Abraham Lincoln 1-cent and Liberty Series Postage Stamp Plate Blocks

This is a small collection of vintage United States postage stamp plate blocks, featuring the 1-cent Abraham Lincoln stamp (Scott #1031) from the Liberty Series, originally issued in 1954. The prominent stamp features a green portrait of Lincoln based on a painting by George Healy. The plate block includes the number '26248' printed in green ink. Also visible are rose-colored stamps, likely the 1950s 9-cent Alamo or similar commemoratives, showing plate number '26432'. The items are rectangular paper stamps with standard gauge perforations. The physical condition appears compromised; there is significant foxing, moisture staining, and discoloration particularly along the right-hand edge where a yellowish, crystalline residue or adhesive aging is visible. The paper shows waving and lack of flatness, suggesting poor storage in a humid environment. Some corners are folded or rounded, and there is evidence of gum disturbance on the reverse which may lead to sticking if layered. These are mass-produced philatelic items from the mid-20th century. While originally intended for use or collection, their current high level of environmental damage significantly impacts their preservation state and potential philatelic value.