Date stamp and which litra being used in production
Litra = user unit
A = Letter Center, Oslo – Østland's terminal
D = Hamar terminal (closed)
F = Drammen terminal (closed)
Z = Vestfold terminal (closed)
L = Stavanger terminal (closed)
R = Bergen terminal (closed)
T = Ålesund terminal (closed)
T = Molde terminal (closed)
V = Trondheim terminal (closed)
W = Bodø terminal (closed)
X = Tromsø terminal (closed)
Some equipment from discontinued terminals stored as spare machines can be put to use again.