1970 U.S. Proof Set Brilliant Uncirculated Photos in this listing may or may not be stock photos. The photos are meant to be an indication of the product you will receive. Due to their elegant appearance and low price proof sets can serve as a great introduction to the world of coin collecting for a beginner or can be an enjoyable part of a wider collection. Set Highlights: Made by the U.S. Mint in San Francisco. The Lincoln cent in this set is the Large Date variety.