I found blocks of 4 for both of the stamps issued in the 1947 Royal Family Visit so I just put together a page to include both the singles and blocks of Southern Rhodesia issues.

If you’re interested, you can download the pdf of the page from PCloud here:

https://u.pcloud.link/publink/show?code=XZKAv70ZgkJ4GKOeDohzBUEJTahyC8D0nKo7