Masonry Magazine January 1975 Page. 8
After 6 years research, A MAJOR TECHNICAL BREAKTHROUGH! A revolutionary new finish... THE NEW Specha-Glaze Reg. U.S. Pat. Off., Canada and other countries by THE BURNS & RUSSELL CO. STRUCTURAL GLAZED MASONRY UNITS!
A SATIN FINISH that is EASY TO CLEAN... EASY TO KEEP CLEAN ...RESISTS MARKING EASY FOR THE MASONS TO CLEAN DOWN... EXCELLENT COLOR CONSTANCY
Plus all the economic and structural advantages of traditional SPECTRA-GLAZE® Block... Permanent sanitary finish, thru-wall loadbearing units, fire ratings, accurate two-faced units, 48 colors, etc.... Helps meet your energy crisis problems, with excellent insulating advantages... and it's AVAILABLE!
Available from all SPECTRA - GLAZE Block Manufacturers in the U.S. & Canada "Reg. U.S. Pat. Off., Canada & other countries by THE BURNS & RUSSELL CO. Box 6063(m), Baltimore, Maryland 21231. 301/837-0720. Cataloged in SWEET'S® (Please write or phone for full details, current catalog & addresses of nearest manufacturers)