These are an extremely rare find. 

New Porcelain Enameled Original Vintage Wedgewood Stove Top 'Spider' Burner Grate. This grate is found on various size mid-late 1930's vintage Wedgewood stoves. Often these models had the black porcelain enamel stove tops.

MEASUREMENTS:
The 3 longer spokes are 4.0" from the outer ring edge (pegs are 3.50")
Short spokes pegs are 1.50" from the outer ring edge
Outside diameter of center ring 3.25"

Please Note: there is a number on the underside of one of the spokes that reads 6385