I found these antique medallions when traveling through Italy this past summer. Price is for one, look at photos and choose by description and photo number. I do not know the metal used in these, they are heavy, and cleaned up with silver polish.
Photo 2-3, beautiful angel with no engraving on back, measures 1 in round
Photo 4-5 a really lovely winged fairy [engraving on back very faint: CGIL CISL UIL II RAD 1-5-75 almost 1 1/2 in round
Photo 6-7 is a roller skater featured on front, back is engraved: UISP COLL Di PATT ART 1979, measures a little over 1 1/2 in x 1 1/4
Materials: silver, brass perhaps, gold, metal.