I purchased these Sagittarius brooches from a clean, smoke-free home at a recent estate sale.  The round one is marked "Trifari", and the other two appear to be unmarked.  All are made of a non-magnetic metal.  These pins are in very good condition with some normal wear.  See multiple photos above in order to get a great look at the details and condition of these pins.  Low Buy-It-Now Price!