[GreenKeys] Question on model and serial numbers

[Pete Lancashire]

I'm trying to get a grasp on the 28's I have.

The tags on the front of the printing unit above the dash pot all seem to
have quite different "CODE"s.


Hope someone can help with some questions

Is there a reference to CODE "28D".

In 1149B there is a reference to Mark II and Mark III printing units.
is there a document that lists the differences ?

Serial numbers ? Did the sequence restart depending on the CODE ? Or are
the s/n's all from the same starting number ? So is the Spokane older then
all the others ?


Name       CODE          Serial Number
Spokane    LP 3          2842            1149B_Mod28_Parts_Apr63.pdf
Weather    28D           114782          No reference found
Shop       MX-1115A/UG   15088           94200.1a_8-2.pdf
Attic      LP111 RN AJG  275131          navelex-tty-1977.pdf

1149B_Mod28_Parts_Apr63.pdf
"Mark II typing Unit" Friction Feed LP3, 4, 5, 6, 8

94200.1a_8-2.pdf
TT-47A/UG

navelex-tty-1977.pdf
AN/UGC-25A Model 28 Receive-Only Page Printer Set (Compact). Same as
AN/UGC-25 except the typing unit LP111RN/AY is replaced by LPIWY/AJG. AJG
arrangement performs automatic carriage return on line feed with line feed
suppression on the next two characters Note the unit I have is a KSR
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