The 1979-S Type 1 Proof Set is a six-coin collectible set issued by the U.S. Mint that marks the historic debut of the Susan B. Anthony dollar. 

What is in the Set

• Coin Lineup: Lincoln Cent, Jefferson Nickel, Roosevelt Dime, Washington Quarter, Kennedy Half Dollar, and Susan B. Anthony Dollar ($1.91 total face value).
• Mint Mark & Location: All coins are struck at the San Francisco Mint and feature the "S" mint mark.
• Packaging: Contained in a sonically sealed hard plastic case with a red display background, housed inside a black or colored outer cardboard sleeve (Original Government Packaging or OGP). 

• Mint Mark Appearance: The Type 1 variety features a "filled" or blob-like "S" mint mark with closed, filled-in loops caused by an older, worn-down punching die. 
• Type 1 vs. Type 2: Mid-year through 1979, the U.S. Mint switched to a new punch that created a crisp, clear "S" with defined serifs and open interior holes (Type 2). Because Type 1 represents the initial and far more common production run, the vast majority of the 3,677,175 total proof sets minted in 1979 are Type 1. 
• Market Value: Complete Type 1 proof sets typically trade between $10 and $16 depending on condition and whether they include the original government packaging, making them much more common and affordable than the scarcer Type 2 sets.