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According to the book, Meriden Knife Co., 1917-1932. Founded by the owner of Colonial Knife Co. Made skeleton knives for handling by other sources. (in this knifes case, possibly a jeweler) May have had some association with Miller Bros. I do know that Miller Bros. produced alot of Fob knives in their day.
Value is always whatever a buyer is willing to pay. These small fob knives average around $8-$12. Depending on rarity, it could go a bit higher. It's been my experience that ones with unused monogram panels, tend to sell for a bit more then monogrammed ones.