Unfortunately, I am in the same boat as you. But I'll try to help, because I have documents for all these medals (not because I know the subject well). The really important awards are in the picture below. The 3 identical star like awards on top are the Order of the Great Patriotic War First class. It contains gold unlike the Second Class which is identical in appearance but has silver background. I think First Class is akin to American Purple Heart. The large Red Star with a soldier in the middle is, you guessed it, the Order of the Red Star, given for great achievements in defending USSR. How do I know this? I found this great British web site
http://www.garenewing.co.uk/home/collections/russianmedals.php?show=25. All 4 of these were bestowed upon my grandfather on Sept.8, 1943, I don't know why, but I guess they had no time to process them timely in the years before, and just gave them in a kinda "lump sum". I have low serial numbers on all of them, and I'll try to learn more. The medals at the bottom of the picture are standard awards for particular country or city, from left to right: for fighting valour, for defence of Leningarad, for victory over Germany, 20th Anniversary of V-Day, for victory over Japan (in Manchuria), for conquest of Budapest, for conquest of Vienna, for liberation of Prague. These were given to everyone in a campaign in hundreds of thousands if not more, they have no serial numbers and are common. I am a gun and ammunition collector, not a medal collector, so I am sure that information above needs a lot of correcting, which I cheerfully welcome in order to learn more about the subject. My grandfather was at Khalkhin-Gol
http://en.wikipedia.org/wiki/Battles_of_Khalkhin_Gol, but I have no medals from that conflict. I know just because he has told me many years ago.
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