So, website is www.pierce1883.com .

You can try to identify your movement here:

http://www.ranfft.de/cgi-bin/b...gi?10&ranfft&0&2uswk

some more info:

http://www.invenitetfecit.com/...nographe-pierce.html

Thanks Rafal,
As near as I can tell, this is what I have:

http://www.ranfft.de/cgi-bin/b...t&0&2uswk&Pierce_103