American Philatelic Association, American Philatelic Society · Altoona, Pa. : [American Philatelic Association] · leaf 242
rly being used in Germany and Austria. 4205- -Thorp, Frank, E., Norwich, N. Y. — Ideal Heating Journal. 3072- -Tower, George E., Mendota, 111. 3431- The Lincoln ''COLOUR DISC" -Tracy, Franklin W., Springfield, III. 3986- WATERMARK DETECTOR -Wallquist, Karl A., Chicago, 111- 4072- -Walliser, Carl,… … One of these Cdaur Discs wiD di^oover fhe^i^teniiark. -Brown, William, Salisbury, Engl. 2809- -Buddee, A. L., Mexico City, Mexico 3400- An invention to revolutionise the trouble that | \ formerly existed in detecting Watermarks. By \ -Filsinger, Fred B., Toronto, Canada 3955- I means of Special…
