This is a lot of two original 1962 First Day Covers (FDCs), each stamped and postmarked in Norwalk, Connecticut:

📬 Cover 1:

Features dual stamps: Project Mercury (4¢) and Brien McMahon Atomic Energy Act (4¢)

Red globe "Space Cover" design with illustrations for Communication, Exploration, Astronomical Research

Postmarked July 28, 1962, Norwalk, CT

"First Day of Issue" printed cancellation

📬 Cover 2:

Features two Brien McMahon stamps and one Project Mercury stamp

Monochrome portrait design titled "James O'Brien McMahon – Father of U.S. National Nuclear Policy"

Postmarked July 28, 1962, Norwalk, CT

"First Day of Issue" printed cancellation

Both covers are clean with mild edge wear consistent with age and have handwritten addresses (J. Van Mater, Newark, NJ). Backs are unsealed and show no major defects.

Perfect for collectors of historical space memorabilia, Cold War-era politics, or philately in general!