I did.
It still didn't make sense.
You state "
The current code letters indicate the year of manufacture, starting with "K". The number, at least on the forgings, indicate the sequence that the die it was made from was machined. The dots, or dashes indicate the impression on the die that it came from."
I believe Klein uses all letters for the year. I'm not sure if the dots and dashes mean a die reference or a month week reference. May I ask where you found this information?
I have noted the handle numbering ranges from 1-9, with usual single digits. Rarely I'll see a two number set on the handle, but only 10 or 11. These two numbers may be stacked or arranged typically
The absence of seeing those two number combinations doesn't lead me to think that they are for month of production.
I have figured out the letter date coding for the more modern Kleins:
H=96
I=97
J=98
K=99
L=00 (Always seen on Klien "Y2k" special edition)
M=01
N=02
O=03
P=04
Q=05
R=06
S=07 (Seen on 150th anniversary)
T=08
U=09
V=10
W=11
X=12
Y=13
Z=14
A=15
B=16
C=17 (Seen on 160th anniversary)
D=18
E=19
F=20
G=21
2000 'Y2K' with 'L'
2003 Michael Andretti with 'O'
2017 J2000 with 'C'
