Masonry Magazine January 1969 Page. 34
ROCKWELL MORTA-LOK...
FOR THE BEAUTY OF BRICK WITH NO SACRIFICE IN PRODUCTION OR CONSTRUCTION QUALITY
Rockwell Morta-Lok mortars have extra long board life, and a plastic, 'won't quit workability that allows you to keep the wall true while maintaining a high rate of production.
Join the money-makers specify Rockwell Morta-Lok for your next job.
ROCKWELL LIME CO.
ROLICO
LIME
MANITOWOC, WISC.
CHICAGO, ILL.
masonry January, 1969