Pretty excited with this lot. I'm still a newbie but I'll start by soaking these coins in distilled water for a few days. Trying not to join the "Dark side" but the idea of electricity to clean coins is kinda cool
Going clockwise, starting top left
A-14.34mm 0.6g Roman
B-18.95mm 1.8g Constantius II? soldier spearing fallen Persian horseman
C-17.47mm 3.2g Macedonia, 320BC or later AE17; Bows and Clubs B A = ΒΑΣΙΛΕΩΣ ΑΛΕΞΑΝ∆ΡΟΥ (Alexander the Great?) like this->http://www.forumancientcoins.com/catalog/roman-and-greek-coins.asp?radd=1&vpar=18&zpg=68512
D-18.31mm 7.2g Probus?; Eagle with wreath between two letters "E" and "Δ"