The first 2 are coronation medals for George IV. The last is, I believe, a wedding medal. Sorry but I have no idea on value. With most of them it is rarely more that a couple hundred dollars and often less.
Here is one I found from HA.com http://coins.ha.com/c/item.zx?saleNo=3015&lotNo=27440 Seems this one is going for around 250-350 depending on auctions
the first one is George lll coronation in 1761 by L. natter, it should be 34mm wide. in ef is worth about £300 or $450. the second one all so a coronation by B.pistrucci its width should be 35 mm. again in ef is worth about £75 or $ 110 for copper or £175 for silver . sorry i cant give you any info on the third medal, they are great looking medals congrats
Thank you daemac, What I have found about the thrid one is at least the BHM number wich is 1912. Thanks again buddy appriciate the time given Siggi
Siggi, You can often find a lot of royalty medals on the site of Hedley Betts. http://www.medalsoftheworld.com/ Chris