Nice pair of antique cast iron shelf, sink brackets. They have a nice decorative Scroll design. There in chipped worn silver finish along with some light surface rust showing. They are unmarked, the manufacturer is unknown.  There are no chips, cracks, or breaks.  They are sturdy brackets and can be used for a shelf or to support a sink. Overall, there in good condition. Please look over the pictures and ask questions when needed. Thanks for looking 

Measures approx. 17 3/4" depth x 15 3/4" tall x 3/4" thick at wall x 2" thick at mounts x 3/8" thick at face

Top oval slot: 8 1/2" to 13" length