A George II silver campaign marrow spoon

A George II silver campaign marrow spoon,

by John Ladyman, London circa 1730,

the oval bowl with a plain rat-tail, the handle screws in half to fit in a campaign set, engraved with a crest, length 21.3cm, plus an 18th century silver marrow scoop, stamped MB three times, possibly provincial, approx. weight 3oz. (2)

The crest is that of Guest.