WEIGHT = 4.215 lbs.
HEIGHT = 6 15/16 inches
WIDTH =6 7/8 inches
(MEASURED ACROSS THE BASE
VALUE = $150 - $250

Marking
10
on back, in lower left hand corner

Note 1:
National sold this doorstop unpainted for 50 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.

Caution
There exist a reproduction marked "CN"
See Views "X1" & "X2"
"CN" can be seen in View "X2"