. When I got home using my reading glasses I swathe tang stamp of Empire Winsted CT and on the bottom of the pile side handle some apparent makers marks above sterling though they are very worn (see photo). Based on the wear I am guessing this knife saw a good amount of pocket time!! Just impossible to know the maker of the sterling silver handle though the 1st mark is almost readable. Keep in mind these sterling handles were often made by jewelers. The blades all snap well and are tight despite some staining on the blades. To me this was a cool find and indeed the smallest Empire in my coillection – in fact close to the smallest knife in all my collection sans my mini MOP clip blade at 1” with no makers mark (another bargain basement find at an antique fair)…. This Empire made my day when found 
…Lee
... I have never come across any reference to the silversmiths who did the Empire work. Here is another below but a sterling Empire (ring turn pen) with the marks clear. Best I can see all the way to the left is a Flag with F&B inside - these look familiar to you??
)... Amazingly it was local find almost 2-3 years ago... If "knives could only talk" this one would have no doubt have some great stories 
... Here's some better recent photos of just that knife -