Here are links to the letter of authenticity (you know to whom the gun was shipped):
http://www.swhistoricalfoundation.com/swhf_letter.pdf
And to the SWHF records search request; you need the letter above for this but there is no charge if nothing is found. Chances are very high there will be - the original order form, correspondence about the gun, etc.
http://www.swhistoricalfoundation.com/swhf_form.pdf
Great first post!