Measure about
5.5" x 5.75" and 5.75" x 5.75, see photos
can't be certain of material, ashtray in 2nd photo seems like brass
ashtray in 3rd photo seems like copper or mixed metals. see oxidation
together they weigh one pound 2.9 ounces
Vintage Mid-century Scalloped Solid Brass Ashtray and Copper Ashtray