Framed Scrimshaw. Not sure if this is "real" or purely for decorative purposes. Would love some insight :)

Found this very pretty decorative item that is marked "Scrimshaw by B. Anderson" It is small with the frame only 3 1/2" at the bottom. It has 3 pieces with ships. They are very detailed. I know absolutely nothing about scrimshaw and would love some help with identifying the artist/approximate date made. Thanks!