Here's my Dayton triplet. I haven't dug up any literature yet, but was dated by previous owner as 1898. Came from the Schwinn Family collection courteous of Jim Hurd. Also need to research who the "Jacques Bro's" were.
1896-97 Denver Cycle Mfr. Co. Tandem, I still haven't had the opportunity to shoot pictures in good light so the decoration can be visible.
Note the very unusual "Denver" engraved nickel down tube decoration. Has anyone seen this detail on any other bicycles?