All timelines branch off from March 5, 1865. The traffic light observed is Broadway and Libby in Maple Heights, Ohio (OTL names).
Code:
V vertical
H horizontal
R red
O orange
Y yellow
G green
B blue
Letters are listed top to bottom or left to right.
Thus OTL is VRYG.
CODE NUMBER
VRYG 4370
HRYG 3722
VGYR 3160
HGYR 2665
VRG 3851
HRG 2994
VGR 3419
HGR 2828
VOB 1666
HOB 1751
VBO 1824
HBO 1295
MISC 997
NONE 1833
Most two color styles have both lights lit for a short time to indicate a pending change.