Bidspirit auction | W.S. Tyler & Cole-Parmer Testing

W.S. Tyler & Cole-Parmer Testing Sieves - This pair of professional laboratory testing sieves features circular brass frames and fine metal mesh screens. The top sieve is manufactured by W.S. Tyler, Inc., identified by a black rectangular metal identification plate riveted to the frame reading TYLER STANDARD SCREEN SCALE TESTING SIEVE OPENING IN INCHES.0058 CE TYLER MESHES TO THE INCH 100 U.S.A. SERIES EQUIVALENT 100 W.S. TYLER, INCORPORATED A SUBSIDIARY OF COMBUSTION ENGINEERING, INC. The second sieve is manufactured by Cole-Parmer and is identified by a black rectangular metal identification plate riveted to the frame reading U.S.A. STANDARD TEST SIEVE ASTM E-11 SPECIFICATION METRIC 212UM Cole-Parmer NO. 70 S/N 09416524 INCHES.0083 MADE IN U.S.A. The exterior frame of the Cole-Parmer sieve bears a handwritten number 75 in black marker. Both sieves are designed for stacking and nesting for particle size analysis. Diameter: approximately 8 inches as measured across the top opening (photo 5).