I can get the ball rolling. My latest addition is American Watch Company Grade 19 Jewel Model 1859 Movement SN 40,126 with Fitts's patented reversing center pinion and double sunk dial, in what I believe to be the original gold hunting case, marked "T.B.B." This movement was finished in November of 1860, the same month in which Abraham Lincoln became President Elect of the United States. (South Carolina seceded the following month, on December 20. Lincoln was inaugurated on March 4, 1861, after six more states had seceded.) The NAWCC.org Waltham Serial Number Lookup utility suggests that Waltham made 260 AWCo Grade Model 1859 movements, but surviving examples seem to be fewer and farther between than that number would suggest. SN 40,126 is out of the last and longest run of these, and it is only 18 numbers away from the example Tom McIntyre shows on his excellent website, AWCo.org. If anyone knows who "T.B.B." might have stood for, I'd appreciate your sharing that information. A better photographer than me, who can identify himself if he wishes, shot these pictures.