This old sewing table platform foot pedal is extremely old and uncommon.  We have had it for 30 years now and have used it as a countertop pot trivet.  It is in overall good condition with the upper right hand corner having been repaired. The corner looks to have been broken off somehow.  Even the repair is amazing , given that almost no one can or does weld cast iron any more. Even with the repair, it still displays beautifully  It is solid cast iron and heavy for its size. It measures 13 and three quarters inches by 9 and one quarter inches.