Coin Silver Teaspoon by Farnham & Owen, Circa 1825-45 - Location?

Offered is a nice American coin silver teaspoon marked FARNHAM&OWEN, for a partnership that I've been unable to pin down as to location. I doubt this piece was made in Boston, despite having been attributed to a Farnham there. This piece should date to about 1825-45 based on style, but could be a little older or younger. It features a clear maker's mark and a period engraved script monogram of "SJC". This spoon measures about 5 11/16 inches in length, and weighs about 13 grams. Condition is fair overall, with some dimples and dings to the bowl, and modest surface wear, but no splits or repairs. All in all a nice example of an uncommon mark!