15 Apr
2011
15 Apr
'11
2:22 p.m.
On 2011 Apr 15, at 1:55 PM, Dave Caroline wrote:
I do not think that number is a patent number see
http://home.ix.netcom.com/~hancockm/when_was_it_made.htm
the serial number encodes date and model
but the linked page seems to miss out the 184xxx numbers
We/I were going by the patent dates (Jul 1907 - Jul 1909) on the
nameplate in the photo, not the serial number.
But yes, your refs suggest it is of the era the patent dates suggest. I
initially thought it was more like a '20s/30s era machine. Not sure
when those machines first started getting electrified.
Dave Caroline
On Fri, Apr 15, 2011 at 9:39 PM, Brent Hilpert <hilpert at cs.ubc.ca>
wrote:
> On 2011 Apr 15, at 1:25 PM, allison wrote:
>
>> there is only one thing that was not made 1909, that is a patent
>> date.
>> ?It's from much later maybe
>> 30s or 40s at least. ?Still a find though.
>
> I noticed that too. It's interesting there isn't a more recent patent
> date,
> closer to the time of manufacture, as so often improvements in such a
> new
> technology resulted in new patents from the manufacturers as they
> competed
> for market position.