Hi Ohio, You are correct in that the model in question was introduced in 1888 and was produce until 1900 when changes were made resulting in what is now called the Second Model. Anyway, I have a factory letter (30 bucks; search forum for S&W History Request Form) on #283xx which shows shipment on Jan 1, 1892. Ergo, obviously produced in 1891. The letter only provides a ship date. Yours should be earlier than mine, naturally. Hope this provides a little bit of info for you. Regards, Ray