Seller: it_may_be_here (412) 100%, Location: Mentone, California, Ships to: US, Item: 122236829988 Very RARE pair of SIGNED antique (©1900, steam punk era) mercury glass, slanted, shade reflectors used on old Xray machines. Both are in excellent condition, the iridescent hue follows thru around entire circumference on both. Company hallmark around the mouth of each top. Obtained thru a private estate. You will not find an authentic pair!