This is the mid-1940's Max Stein Publishing Company abbreviated edition of Callahan's 1890's classic treatise on vent.  Actual instruction on vent technique is brief...he actually goes more into theory and history than he does the actual "nuts & bolts" of vent.  This edition as printed has only the vent section.... pagination starts with Page 25!

          32pp, 5" x 7-1/2"  pulp booklet.

          This one is in good condition with the usual pulp paper edge chipping, plus the covers are wanting to separate.  Still, this is a VERY SCARCE booklet and highly desirable.

$20.00

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