When British monarchs died/abdicated in first half of the 20th Century, what was the protocol for changing portraits and coins etc?

by JDHoare

I found myself suddenly marvelling at how Britain managed to crank through three kings in 1936, the logistics of which had completely passed me by leading to a slurry of related questions that are probably connected:

When it came to minting new coins and printing new bank notes, how long did that take to kick in? Did Eddie get any currency in circulation?

Was any central body responsible for sending portraits of the sitting monarch out to schools, police stations etc across the Empire/Commonwealth, and how long did this take to roll out?

Was the changeover slower for much beloved and long-reigning sovereigns like Victoria, and do any others match up to her?

If you have your heart set on a British Royal Protocol from 1837 flair, now is your time to shine...

Georgy_K_Zhukov

Hey man, you need to contact the admins. You did something naughty, cause now you're shadowbanned...