I'm the proud owner of a Fox HE series doubl-barrel shotgun. It has a 32" barrel, Barrel weight is 0 with a serial no. 29517.I'm happy to send some photos if anyone can give me any information or direction as to where to get information about the gun.
If you join the Fox Collectors association, you can obtain 1 free copy of a Fox Factory card per year (graded guns only and usually only the front side of the card), whereas each addtional card ordered within the year costs $25 to members.
You can also order a Fox factory letter from retired Savage Arms employee, Mr. Callahan, for $40, which might take a month or more to obtain. Details on obtaining a Fox factory card copy or a factory letter from Mr. Callahan can be found on the Fox Collectors web site posted above.
If your Fox (or other makeer) was ever sold thru Abercrombia & Fitch or Von Lengerke & Detmold, you can obtain info and copies of company inventories and sales from Bob Beach at Griffin & Howe: http://www.griffinhowe.com/research-main.cfm
There is a search function on the Griffin & Howe web site where you can enter maker and serial numbers to see if particlular guns are in their records. It is a great service and Mr. Beach does a great job.