Old coins (Great Britain?)

Hello,

I have 4 old coins that were part of an unsearched lot I bought several years ago. I am finally getting around to identifying and cataloging them, and was looking for a little help. I initially have these identified as pennies or half pennies from Great Britain, but they are VERY worn/corroded, so I am not positive. I realize the photos are not very good, and I am asking a lot, but I figured it was worth a shot!

Here are the sizes:

1. 28 mm diameter, 8.4 grams, 1 mm thick
2. 22 mm diameter, 8 grams, 1 mm thick
3. 30 mm diameter, 11.35 grams, 2 mm thick
4. 30 mm diameter, 7.6 grams, less than 1 mm thick

1.
2.
3.
4.

4. https://en.numista.com/catalogue/pieces670.html

Yes the other three, with Britannia on the reverse, are from the UK.
Will brighten the pictures ...

1. GEORGIVS III REX probably

2.

3.

3. https://en.numista.com/catalogue/pieces5616.html

1. https://en.numista.com/catalogue/pieces5335.html

2. https://en.numista.com/catalogue/pieces8483.html

Thanks very much, I appreciate it! At least I was on the right track with them ;)

I did those as I found the pages. Here they are, with images and visible lettering / numbers ...

2.


https://en.numista.com/catalogue/pieces8483.html

1.


https://en.numista.com/catalogue/pieces5335.html

3.


https://en.numista.com/catalogue/pieces5616.html

4.


https://en.numista.com/catalogue/pieces670.html