for some reason i have trouble seeing the difference between the normal o mm and the micro o mm on 1899-o morgan dollars. they both look small to me. i don't think that this one looks small enough to be the micro o. what do you think? http://www.pcgscoinfacts.com/Coin/Detail/87260?redir=t
The micro-o is TINY. It could sort of fit inside the normal sized o. (You can compare the o here to yours. Edit: added photo & reference to photo.
thanks for the reply and the photos. these photos show a better idea of how small the micro o mm is. the pcgs links that i posted don't seem to give as good of an idea of the micro o mm size. my coin is not the micro o.