Outer frame line is a little thin West of "CA"; faint short entry in the South West corner of the stamp; moving position or travelling dot on the North oval ornament near side of the East oval ornament near the East end; main position dot is in the centre nearly full towards West or full.
Kershaw's notes
There are twin breaks in the LH and lower frame lines adjacent to a small localised short transfer
Morel's notes
Left oval dot half in white area, and on guideline centre. Dot also present in right oval, a 2 o'clock superimposed over the blue line of the oval. left and LL framelines weak at corner near the LL 17, and a weak transfer is also present between the LL 17 and the LL framelines.
Stamps from printing orders 1 to 5A were perf. 11.75, stamps from printing orders 5B to 7 were perf. 12 x 11.75 and those from printing orders 8 to 12 were perf. 12.