1902 Micro O-Real Or Counterfeit?

It's easy - there are no real ones. They're all counterfeit. They were made long ago, though, and are of high enough quality that it was only recently they've been discovered to be fakes. They have retained their VAM numbers because of their popularity.

During the first half of the century, silver traded in the open market at a much lower price than the "official" price. A silver dollar could contain less than 50 cents worth of silver. It was a pretty good incentive to counterfeit silver dollars with real silver. In fact, some of these have been found to have a higher silver content than real Morgans.

The size of the "o." Micro O's are noticeably smaller than regular ones - if you've seen more than two or three New Orleans Morgans, you'll be able to identify Micro O's on sight.

Actually there were a couple of legitimate "Micro O" years - 1880 and 1899. One of the real 1889-O Micro O reverses was the model reverse for the counterfeits dated 1896, 1900 and 1902. All three use the same reverse, which was the "smoking gun" proof that all were fake. There's no way a single Morgan reverse die could have been used in 4 different mintage years.

WWW.vamsandmore.com have for sale an excellent 1902-O attribution guide by Alan Scott. it is well worth the money. Absent that, Unless you post a picture of the obverse and reverse, none of us will be able to help attributted your coins.