Vintage Solid Brass Copper Tyler Standard Screen Scale No 35 Mining Sifter StrainerOpening in Inches: 0195. Meshes to the Inch: 32. US Sieve Series Equivalent No. 35. Opening Microns: 500. Screen is round, tight, with no rips or holes. Has some minor dings from years of use. Will polish beautifully, or leave as is to enjoy the natural patina.