Help?? Metal detecor find!! I found this button and cannot find another on the net to identify it?If -u- can help please let me know.I found this today using my whites coinmaster.It was found near Spotsylvania courthouse,Va. at an old house site.Its in great condition for being burried + found 142 years later burried in 5 in. driveway gravel + 2 more inches dirt.It has 13 stars and an anchor.Its a large button about the size of a U.S.quarter.It has down turned wings that are very bold.Please note the eagles head on this one faces left?All the buttons I have seen that are somewhat similar are facing right?This Large button has on the back Superior Quality.I know by the 13 stars + anchor its a civil war,naval or marines? I also have 2 other buttons, Non dug! if you can help with those as well/They are small size about that of a us dime, has an eagle with a shield.Federals maybe?Only one is marked on the back.One has the shank one doesnt.These 2 are great treadle type sewing machine,drawyer finds.Any help with identification is greatly appreciated.Thx