1878-1880 "S" Mint Morgan Silver Dollar 3 Coin Set With Case. 1st 3 Years Of The Morgan Dollar. Here's a handsome set of 90% silver Morgan dollars from the first 3 years of the series 1878, 1879 and 1880 hailing from the San Francisco Mint! Known for producing some of the finest Morgans ever issued, this prestigious branch mint helped meet increased coining demand in the West following the discovery of silver and gold deposits like the Comstock LodePlease Note All Backer Cards may have slight differences but will be very similar if not identical to the one in the photo