HEIGHT = 6 3/4 inches
WIDTH = 6 1/2 inches
VALUE = $150 - $250

Marking:
76

Note 1:
National sold this doorstop unpainted for 25 cents or electroplated with brass, copper, or nickel for $.90 per National's 1920's Catalog.
They also sold paint kits or their doorstops painted.

Note 2:
The name "American Clipper" origin is the way this doorstop is listed in the price guide of National's 1920's catalog.