Found this 4 7/16" demitasse spoon marked Sheffield, lower case b for 1919, and a markers mark of R&D. Have been unable to positively identify the silversmith, have looked through various other cities to see if he also practiced elsewhere.
Your thoughts and insight would be much appreciated. Warren
Hmmm had resized and cropped these images before posting, have reverted back to their former size and orientation. Let's see if they re-adjust themselves eventually. Otherwise I don't know what to tell you.