[GreenKeys] Model 15 serial numbers

[COURYHOUSE at aol.com]

I  had  brought  that  up  awhile  back and  got  shot  down on it.   I  
thought it was a good  idea
and  a start  point  might me  orig invoices  from  teletype that has  a 
s/n on it of  item sold new at that point.   It might  frame in an approximate 
 time frame .... one a   collection of  s/n and dates starts   it might 
present  a   timeline....
 
ed sharpe archivist  for smecc
 
 
In a message dated 1/8/2016 10:02:18 A.M. US Mountain Standard Time,  
jhhaynes at earthlink.net writes:

The  place of manufacture is surely Chicago, but I don't have any 
information  on serial numbers and dates.  I've seen figures like 100,000
and  150,000 for total production of Model 15s.

Those who have ex-military  machines might find them stamped with an
inspection stamp and date, or with  a MFP stamp and date (moisture and
fungus proofing) and that would  establish a latest-possible date of
manufacture.

There are some  products, like collectible radios, where people online
have established  registries of serial numbers to try to determine date
of manufacture and  total number manufactured.  Maybe someone wants to
do that for  Teletypes.
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