I bought this off ebay listed as an EF Bowman pocket watch made in the USA. Clearly, it is Swiss and at least sold by Moulinie Aine. My first question is does anyone know the casemaker E&F? Second, is it possible this is an early key-wind Patek? I know Moulinie Aine made high quality watches as well, but this has a lot of the same features I see in early Pateks. The serial number also seems appropriate. I have also only seen the G stamp used on the case on early Pateks (to the right of K18 below). Of course, I don't even know what the G stamp means. The green enamel case is pretty damaged from use.