The Jules Lang & Son registration bundle RDs 751081 to 751084 of 30 December 1929 is indeed a whole trinket set, with details as follows:
RD 751081 - Ringholder, approx 3¾" dia x 2¾" high
RD 751082 - Tray, approx 11¾ " x 7" x 1" deep
RD 751083 - Small Pot with lid, approx 2 7/8" dia x 3½ " deep (inc lid)
RD 751083 - Large Pot with lid, approx 3¾ " dia x 4" deep (inc lid).
N.B. It IS the same Reg. No. as the small pot, not a typo!
RD 751084 - Candlestick, approx 4" dia x 7" high
First batch of photos attached.
(Permission for the re-use of these images on GMB granted by Rob Young)