[GreenKeys] Model 15 serial numbers

[Pete Lancashire]

On killer is so many of the base/typing unit/keyboard/etc were mixed in
depot's.



On Fri, Jan 8, 2016 at 11:39 AM, Ed Sharpe Archivist for SMECC via
GreenKeys <greenkeys at mailman.qth.net> wrote:

> 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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