Antique Derby Silver Co. Set 1684 

Coffee Pot + Cream, Sugar 

and

Middletown Silver Co. Teapot 955

The 2 sets are very similar, but not identical.

Bakelite Handles and Lid Knobs

All are monogrammed PBD  (Best Guess)

All but teapot have paneled sides. 

All need polishing. 

 Bottom beading on teapot has a slight dent. 

Dark marks inside cream pitcher and coffee pot. 

Not sure I correctly identified the monogram.