I would love to see pictures of it. Something doesn't sound right if it is that low of a number. It shouldn't say anything on the receiver, as well as none of them that I have ever seen have the serial number stamped on the trigger guard (behind the loading port).
If you are referring to the info from James Tipton about the serial numbers when he says that the company started with 1000, then yes he is wrong as I have handled number 127.
Your shotgun would have been made in the first year which is 1905, but I wouldn't say that with 100% assurance since I can't see it, and there are a few things that don't sound right.