The practice of applying a single cancellation across a pair of stamps or too few cancellations on larger multiples, whilst still rare, continued into the barred numeral era.
Additional items not in display
[RG-RJ] plate 76, strip of 4, cancelled contrary to regulations with 2 black London District 6 (Edgware) numerals.
[CG-CH] plate 144, pair cancelled contrary to regulations with a single London District 16 (Deptford) numeral.
