To everyone following this thread,
I invite all of you to review this material and post your comments, suggestions, and any new evidence you have concerning the series codes, manufacturers, and especially the date ranges.
Last Updated: 12/1/10
(Note-- items in red are the latest updates)
Early Craftsman Series (generally pre-1947, some exceptions):
A-circle = Empire, ca. 1935 -1973
BC = unknown U.S. manufacturer, ca. ? - ?
BE = New Britain, ca. 1931 - 1947
BM = S-K, ca. 1939 - 1951
BT = Vlchek/New Britain, ca. 1936 - 1938
Cxx = Probably New Britain or Hinsdale, ca. 1932 - 1936
CI = unknown U.S manu., ca. 1930 - 1945
CF or C-F = Probably Herbrand, ca. 1934 - 1939
CK = Unknown U.S. manu., ca. 1939 - 1943
Craftsman Vanadium = unknown U.S. Manu, ca. 1931 - 1941
C8 = JP Danielson, ca. 1930 -1936
F-circle = Miller Falls, ca. 1949 - 1964
G-circle = possibly Lectrolite, ca. 1949 - 1964
H-circle = New Britain, ca. 1931 - 1947
K-circle = SK, ca. 1939 - 1951 perhaps later
N-square = unknown U.S. manu., ca ? - ?
P-circle = Wilde, ca. 1945 - 1960
S-circle = Kastar, ca. 1960 - 2008, perhaps earlier
V-circle = unknown U.S. manu., ca. ? - 1985
U-circle = Plomb/Penens, ca. 1944 - 1948
Y-circle = possibly Ridge Tool, ca. ? - ?
Z-circle = Mayhew, ca. 1957 - 1969
Modern Craftsman Series (generally 1947 and later, some exceptions):
AZ-circle = unknown U.S. manu, ca ? - ?
BF = probably Daido, possibly KTC, Japanese made, ca 1969 - 1987
C = unknown U.S. manu., ca. 1991
C = Stanley Works, Taiwanese made, ca. ? - ?
(note--this is a Canadian Craftsman series code)
CG = unknown U.S. manu., ca. 2001 - 2005
D = Kington, Chinese made, ca. 1992 - 2008
DJ = Mitutoyo, Japanese made, ca. 1968 perhaps earlier & later
E/EE = National Hand Tools/later Stanley Works-NHT division, some USA made, most Taiwanese made, ca. 1982 - 1991
EEE/EEC/EE7 = Stanley Works, Taiwanese made, ca. 1988 - 2009
(note--these may be Canadian Craftsman series codes)
F = Danaher/possibly K-D division, ca. ? - 2008
G = Easco, ca. 1980 - 1989 perhaps as early as 1979 when Easco acquired the Gastonia plant
G continued = Danaher, ca. 1990 - 2010
G1 = Danaher, ca. 2000
G2 = Danaher, ca. ? - 2008
G2D = Danaher, ca. 2008 - 2010
GD = Danaher, ca. 2008 - 2009
GK = Danaher/Kingsley Tools Division, ca. 2003 - 2010
GK-A = Danaher/Kingsley Tools Division, ca. 1999 - 2003
GK-F = Danaher/Kinsley Tools Division, ca. 2007 - 2008
GK-G = Danaher/Kingsley Tools Division, ca. 2007 - 2008
GK-X = Danaher/Kinsley Tools Division, ca. ? - 2008
H = Danaher/Holo-Krome, ca. 1994 - 2010
HZ = Danaher/Holo-Krome, ca. ? - 2008
HZ O = Danaher/Holo-Krome, ca. 2008 - 2009
HZ OO = Danaher/Holo-Krome, ca. 2008 - 2009
I-circle = Parker Mfg Co, ca. 1962 - 1986
JW = J.H. Williams & Co, ca. 1954 - 1972
K = SK division of Facom, ca. 1985 - 2004, could still be NOS
K = Danaher, ca. 2009 - 2010
K1W = Danaher, ca. 2007
K3V = Danaher, ca. ? - 2008
K3X = Danaher, ca. 2007 -2008
K7Z = Danaher, ca. 2010 - ?
K4W = Danaher, ca. 2007 - ?
K9W = Danaher, ca. 2008 - 2009
KR = Danaher, ca. 2005 - 2008
KU = Danaher, ca. 1992 - 2005
KV = Danaher, ca. ? - 2008
KW = Danaher, ca. 2002 - 2008, probably earlier
KX = Danaher, ca. 2002 - 2008, probably earlier
KY = Danaher, ca. 2009 - ?
KZ = Danaher, ca. 2010 - ?
L1X = Danaher, ca. 2008 - ?
LC = probably Lectrolite, ca. ? - 1964
L SI = Simmonds International, ca. 2008 - 2010
LZ = Danaher, Made in Taiwan, ca. 2010 - ?
M6W = Dahaher, ca. 2007 - 2008
M6Y = Dahaher, ca. 2009 - 2009
N = Pratt Read, ca. 2007 - 2009
OA = Unknown U.S. manu., ca. ? - ?
P = Wilde, ca. 2008 - 2010, perhaps earlier
Q = Pratt Read, ca. 2002 - 2006
R = Pratt Read, ca. 2002 - 2006
PR = Pratt Read, ca. 2002 - 2009
Q PR = Pratt Read, ca. ? - ?
S PR = Pratt Read, ca. 2007 - 2008
T PR = Pratt Read, ca. 2007 - 2008
T-hex (T inside hex outline) = unknown U.S. manu, ca. 2010 - ?
U PR1-3 = Pratt Read, ca. 2008
V PR = Pratt Read, ca. 2007 - 2008
W PR = Pratt Read, ca 2007 - 2009
X PR = Pratt Read, ca 2009 - 2009
ST = Stanley Works, likely Taiwanese made, ca. 2007 - 2009
(note- this is a Canadian Craftsman series code)
T1V = Danaher, ca. 2006 - 2007
T2W = Danaher, ca. 2008
T3W = Danaher, ca. 2008
T5V = Danaher, ca. 2008
T5W = Danaher, ca. 2008
T5X = Danaher, ca. 2008
V = Moore Drop Forge, ca. 1946 - 1967
V (continued) = Easco, ca. 1968 - 1986 perhaps as late as 1991 as NOS
VE = Danaher, ca. ? - ?
VF = Danaher, ca. likely early 1990's
VG = Danaher, ca. 1994 - 1995
VH = Danaher, ca. 1994 - 1997
VJ = Danaher, ca. 1994 - 2008
VK = Danaher, ca. 1996 - ?
VL = Danaher, ca. ? - ?
VM = Danaher, ca. 1998 - ?
VN = Danaher, ca. 1999 - 2001
VP = Danaher, ca. ? - ?
VQ = Danaher, ca. 2001 - 2004
VR = Danaher, ca. 2002
VS = Danaher, ca. 1995 - 2003
VT = Danaher, ca. 2002 - 2006
VU = Danaher, ca. 2005
VV = Easco, ca. 1974 - 1989
VV continued = Danaher, ca. 1990 - 2009
VW = Danaher, ca. 2002 - 2009
V^(2nd V inverted) = Danaher, Armstrong Division, ca. 1992 - 2010
^V(1st V inverted) = Danaher, ca. 2010 - ?
VVH = Danaher, ca. 2000 - ?
VVL = Danaher, ca. 2000 - ?
VVN = Danaher, ca. 2005
VVS = Danaher, ca. 2003
VVT = Danaher, ca. 2004 - 2005
VVV = Danaher, ca. 2008
VVW = Danaher, ca. 2008
VVX = Danaher, ca. 2002 - 2008, possibly earlier
VVY = Danaher, ca. 2009 - 2009
VVZ = Danaher, ca. 2010 - ?
W = SK Hand tools, post-Facom , ca. 2005 - 2008
WF = Western Forge, ca. 1965 - 2008
WF ll = Western Forge, ca. 1969 - ?
WF D = Western Forge, ca. ? - ?
WF J = Western Forge, ca. 1991 - ?
WF K = Western Forge, ca. ?
WF L = Western Forge, ca. ? - 2009
WF R = Western Forge, ca. ?
WF U = Western Forge, ca. 2008
WF V = Western Forge, ca. 2008 - 2009
WF W = Western Forge, ca. 2002 - 2009
WF X = Western Forge, ca. 2008 - 2009
WF Y = Western Forge, ca. 2009 - 2010
WF Z = Western Forge, ca. 2010 - ?
A WF = Western Forge, ca. ? - ?
B WF = Western Forge, ca. ? - ?
C WF = Western Forge, ca. ? - ?
D WF = Western Forge, ca. 1993 - 2000
E WF = Western Forge, ca. ? - ?
F WF = Western Forge, ca. 2003
G WF = Western Forge, ca. ? - ?
H WF = Western Forge, ca. ? - ?
J WF = Western Forge, ca. 1995
K WF = Western Forge, ca. 1995
L WF = Western Forge, ca. ? - ?
M WF = Western Forge, ca. ? - ?
N WF = Western Forge, ca. ? - ?
O WF = Western Forge, ca. ? - ?
P WF = Western Forge, ca. ? - ?
Q WF = Western Forge, ca. 1990 - 1995
S WF = Western Forge, ca. ? - 2009
T WF = Western Forge, ca. 2002 - 2009
U WF = Western Forge, ca. ? - ?
V WF = Western Forge, ca. 2002 - 2009
W WF = Western Forge, ca. 2002 - 2009
X WF = Western Forge, ca. 1965 - 2009
Y WF= Western Forge, ca. 2009 - 2010
Z WF = Western Forge, ca. 2010 - ?
+ WF = Western Forge, ca. 1965 - ?
* WF = Western Forge, ca. 1965 - ?
> WF = Western Forge, ca. ? - ?
|| WF = Western Forge, ca. ? - ?
∆ WF = Western Forge, ca. 1966 - ?
□ WF = Western Forge, ca. 1965 - ?
7 WF = Western Forge, ca. ? - ?
X = SK Hand tools, post-Facom , ca. 2008 - 2009
X = Mayhew, ca. 2010 - ?
Y = Danaher, Made in China, ca. 2009 - 2010
Z = Mayhew, ca. 1957 - 2010
3 = Kastar, ca. 1991
4 = Kastar, ca. 1992
7 = Easco, ca. 1987 - 1988 possibly 1984 - 1991
[ = Kastar, ca. 2002 - 2009 possibly earlier
Hex-Line = Kastar, ca. 2009 - ?
.(Dot) = SK, ca. 2008 - 2009
Again, feel free to review, comment, and provide evidence of series codes, manufacturers, and/or dates not shown above. Post away!