Thank you for all your input...particularly you Sap.
It is, of course, a medal commemorating the reign of Cixi, which is not an official coin. The fact that I have personal knowledge of the coin being a part of my grandfather's personal affects places it in my family prior to 1976...the year he died. It may have been made for tourists but prior to 1985...the tourist industry in China was rather limited. It has been assayed as silver, (not base metal or clad), however I guess the next step is to determine it's exact content.
Although the dollar-sized medals are well known...the half dollar (or more precisely 3 mace 6 candareen) are not. Unfortunately, all of your answers presume that I have not done any research or validation of the coins content prior to my submission...this is not the case. I know that the "image" of Cixi, reproduced on the coin, was that gleaned from a portrait of her, (complete with headress), done in 1889. I know that the image of the dragon is precisely that of the Yunnan dollar only produced between 1909-1911...right down to the star (dot) between the 6th and 7th , (what I call), flame off the tail...not an element generally considered important to most counterfeiters and not on any of the fakes, of this coin,that I've seen.
I agree it's a "fantasy" coin but its' origin is still in question. Does anyone know of a reputable numismatist in the Chicago area that specializes in Chinese coins or exunemia?
Again, I want to thank you for your help