This sterling silver salad fork is in the "Sir Christopher" pattern by R. Wallace & Sons (1936). It measures 6-3/8 inches in length. Its design is unusual having five tines. The mark on the back includes "Wallace - the stag head - and Sterling".
In the 1930's Wallace released a series of six sterling silver patterns created by William S. Warren. He "conceived the idea of three-dimensional flatware patterns for which the Wallace co. is noted and designed Sir Christopher in 1936." According to information found on the internet, the pattern is named in honor of British Architect Sir Christopher Wren.
There are so many interesting details worked into the design of the pattern. At the handle end of each piece a seashell is featured at the center. On the fork a clump of grapes hangs below the seashell. On the edges below that are tiny pears and strawberries. The attention to detail is fabulous in this pattern. There are flourishes and flowers on the back and an area at the tip where a monogram would fit nicely.