Paul, you have found the following shipments from Audemars to M F Dent: 1 in 1874 2 in 1875 Vaudrey Mercer shows the following shipments from Audemars to M F Dent: 28 in 1859 2 in 1861 1 in 1875 3 in 1879 2 in 1880 The one you found shipped in 1874 might match with the one Mercer shows shipped in 1875. The two you show shipped in 1875 might match two of the three Mercer shows shipped in 1879 (there could be a typo on one side or the other). The important thing is that Mercer clearly shows that after 1859, when Audemars made a significant shipment to MF Dent, the vooume of business between the two firms tailed off very quickly. Now in 1860, Marianna Dent remarried and her new husband became closely involved in running the company; he may have chosen to use Audemars only for exceptional watches. The watch for Dent in the Strand is, of course, for the other half of the split Dent business, that belonging to Frederick and then Elizabeth Dent.