1879 & 1904 First & Last "O" Mint Morgan Dollar Set 2 Coin BU. Everyone needs shining examples of the first & last "O" Mint Morgan silver dollars in their collection. Here's an attractive pair still lustrous and handpicked just for you! The Uncirculated 1879-O is from the second year of the Morgan series, but marks the first year the New Orleans Mint struck these popular silver dollars. The Uncirculated 1904-O is a last-year coin, marking the final time the New Orleans Mint ever struck 90% silver dollars.These big silver "cartwheels" are from a bygone era in America's past – when money meant 90% silver Morgans – the dollars riverboat gamblers carried to get into a card game. Chances are those silver dollars bore the "O" mint mark of New Orleans. The coins offered here still display mint luster after more than a century and are prized legacies of that adventurous era. Your coins are encapsulated and come in a FREE display case – plus you SAVE off single coin prices! These silver treasures are in great demand Please Note All Backer Cards may have slight differences but will be very similar if not identical to the one in the photo