GE fan FORM #'s (taken from the same site I gave the link to above)
I believe this is your date.D 1896 10" Stick
E, E2 1896 12" Trunnion
A 1896 12" DC Trunnion, (Flat style motor)
F 1897 10" Stick
E3 1897 12" Trunnion
B 1897 12" DC Trunnion, (Flat style motor)
F2 1897-1898 10" Stick
E4 1897-1898 12" Trunnion
B2 1897-1898 12" DC Trunnion, (Flat style motor)
E5 1898 12" Trunnion
F3 1898 10" Stick
G 1898 14" Stick (Same windings as Form E5)
C 1898 12" DC Stick
C2 1898 14" DC Stick (Same windings as Form C)
A 1899 16" Trunnion (Wall bracket fan)
E7 1899 12" Trunnion
F4 1899 12" Stick
F5 1899 12" Stick (6-pole, one speed)
G2 1899 14" Stick
K 1899 12" Trunnion (Wall bracket fan)
A 1899 16" DC Trunnion (Wall bracket fan)
C3 1899 14" DC Stick
D 1899 12" DC Stick (Ball style motor, three speed)
D2 1899 12" DC Stick (Ball style motor, one speed)
E 1899 12" DC Trunnion
F 1899 12" DC Trunnion (Wall bracket fan)
E9 1900 12" Trunnion
F 1900 Pancake (One example seen)
F9 1900 12" Stick
A 1901 Pancake
B 1902 Pancake
C 1903 Pancake
D 1904 Pancake
-- 1905 Form numbers discontinued for unknown period.
Q 1913-1914 Ring Osc, Kidney?
R 1915 3-Star
S or T 1916-1918 2-Star
V 1919 2-star, 2-cond headwire
V 1920 New crank wheel, no stars, wrapped steel cage
W 1921 .
AB 1922 .
AC 1923 .
AD 1924 .
AE, AE1 1925 Riveted Handle, 1st stamped motor, bell crank
AE 1925-1926? Stamped motor, cast base, solid handle (some riveted)
AF 1927-1929 Smooth Badge, Stamped Base, Switch mounts to base plate
AK 1930-1931 Aluminum blades
AL 1930-31 Graybar was Form AL
AN 1932 Rounded edges on cage
AQ 1934-1935 Tilt screw is flatter, sintered bearings
AQ1 1934 1st "Quiet Fan"
AR 1935 Motor screws slotted instead of hex-headAS 1936 Deco grille, 3 horiz, 3- vert wires
AS1 1936 10" 3-blade, 1st pedestal fans - copper w/ivory blades
AS 1937 Switch Sticks at a 60 degree angle, last of dark green color
AT 1938 -
AU 1939 -
-- 1940 Ended use of Form Numbers!