USA 3-Cent Conestoga Wagon 1800s Postage Stamps Block of Four

This item is a block of four uncancelled United States postage stamps, each featuring a 'Conestoga Wagon' design. The stamps are printed in a monochromatic reddish-brown or maroon hue on white paper, depicting a detailed illustration of a Conestoga wagon from the 1800s. Each individual stamp has a denomination of '3' cents, clearly marked with 'USA' printed above the numeral '3'. The stamps are perforated on all four sides, indicating they were part of a larger sheet and have been separated cleanly. The block is horizontally aligned, showing four identical stamps in a row, still attached. The text 'Conestoga Wagon' and '1800s' are legible at the top of each stamp. Based on visible characteristics, these appear to be from the 'Transportation Series' of US postage stamps, which were issued from the late 1960s to mid-1970s. The condition appears excellent with no visible tears, creases, or major discoloration. The perforations are intact and uniform. The gum on the reverse side is not visible, so its condition cannot be assessed, but the face presents as mint. The craftsmanship is typical of US postal issues, with good registration and clear printing. This block represents a classic historical theme in American philately, celebrating westward expansion.