Dating Picketts

Rod Lovett

Hello Everone,

Does anyone have any information on the dating of Picketts by initial manufacture of Model Name/Number
e.g when did the following first appear?

Pickett Deci-Point  (Model 1)
Pickett Model 2 Dual Base Log Log Reciprocal Scale

Pickett  Model 3 Deci Log Log Vector

Model 3 Deci Multiphase Log Log

Pickett N3  Power Log Exponential

Pickett Model 4 Vector Hyperbolic Deci-Log Log

Pickett 4 Vector Hyperbolic Dual Base Log Log

etc., etc

There appears to be quite a lot of information available on the dates in which the various logos appear
but nothing direcly answering my question.




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