The English hallmark consists of  the following: Looking from left to right.

1) The Silversmiths sign are the letters J.E.D.& S in this case unknown.

2) Sterling sign, the Lion Passant in motion.This is always on an English piece of Silver.

3) The Town sign in this case London, the Leopalds Head without a crown.

4) The Date letter and Frame in this case an M which dates as 1947.

Summary:

This is a hallmark of a piece of sterling silver made in London in 1947 by a firm registered under J.E.D.& S.