Hi richard357fallon -
Russian icons are a not uncomplicated theme! There are many beautiful authentic pieces but also thousands of fakes on the market.
To see what you have it is neccesary to dismantel the icon, which is (must) easy to be done - just extract the little nails in the frame and you have all the components you need to judge if it is right or wrong.
1) is the oklad (frame) real, massive silver or silver plated copper with tinned rims?
2) is the sujet (person(s), motive, painted completely detailed in oil or just hands and heads in coloured paper on copper, brass or wood?
3) are the eyes "normal" or big and round?
4) are the marks within a certain time frame correct and is the artist or silversmith as icon painter or oklad maker well known?
On the first glace your icon looks contemporary, the marks are phantasy marks, the doll like eyes are typical for faux icons - now we must see inside - but I believe that we will see the same contemporary signs.
For a better understanding I enclose some photos of an authentic icon.
Regards
Zolotnik