This 7 7/8" fish(?) knife has a hollow handle with hallmarks on the blade. The far left hallmark appears to show "BB", the next I cannot make out, the next is a crown, and the far right appears to be a sideways "EP" -- electro plate I assume. The knife is very light weight, with very thin metal forming the hollow handle.
I'm curious as to maker and approximate age. The only mark on the handle is a monogram -- a script "Alma".
Any help is greatly appreciated.