HEIGHT = 8 1/4 inches
WIDTH = 5 1/4 inches
VALUE = $150 - $225

MARKING:
3

Note 1:
On January 1, 926, this doorstop sold for 60 Cents per Albany's Catalog.

Note 2:
National sold their doorstop unpainted for 45 cents or electroplated with brass, copper, or nickel for $1.80 per National's 1920's Catalog.
They also sold paint kits or their doorstops painted.