Apparently the 'Kings Crown' / 'Queens Crown' is not as clear cut as is generally believed
..... have to disagree there old mate. many years ago the Kings'/Queens' thing was briefed to me,
and as evidence the crowns on GCs and VCs were shown. The GC is clearly what we call a "King's Crown" while the VC has the one we use today - and Vicky was the last previous Queen regnant.
I'll try and find some pictures to illustrate it.
'Spose we'll have to wait until Charles III (or possibly George VII) gets in......
Edited to add VC piccy - with "Queens' Crown"