As Robbins introduced new grades, he continually upgraded the existing grades with added features. The AT&Co grade was a prime example. This watch on exhibit was delivered in 1869 several years after the AWCo offered its better grade 3/4 plate models. Although no longer the company's top offering, the AT&Co grade was the best in the Model 57 line. It was spruced up to look more like the 3/4 plates, but was offered at a more affordable price. Robbins was covering all bases. Note the plate jewels are smaller than on the earlier version and their settings are secured with two screws like the 3/4 plates versus three on earlier versions. Perhaps more important, the regulator and index were moved to the balance cock like on the 3/4 plates. This was done only on the AT&Co grade Model 57. The exhibited case is a 4Oz. coin silver half hunter (back lid opens with button) OF with thick crystal. This is not a dainty watch.
