Help me with some older (but worn/damaged) world coins?

Okay, so I have had this tray of coins to look up sitting here for a while, figure it's time to finally dive in.

If I think I've found some information on a particular coin, I'll list it. If I'm fairly confident about said information, I'll leave it in regular typeface - if I'm unsure, italics.

Here's what I have:

Top left:

Country: Switzerland (Bern)
Specs: 1.5g (weight) 23mm (diameter)
Denomination: 1/2 Batzen (1718-1798)
Date: 1754

Top middle:

Country: Great Britain (George 1)
Specs: 2.6g (weight) 20.5mm (diameter)
Denomination: Six Pence
Date: 1723

Top right:

Country: France (Grenoble)
Mint Mark/Assayer: Z (double dolphins) / Antoine Amar
Specs: 2.3g (weight) 21.5mm (diameter)
Denomination: 12 Sols
Date: 1729

Middle left:

Country: Livonia (Riga)
Specs: .9g (weight) 17.5mm (diameter)
Denomination: Schilling / Solidus
Date: 1611
*Haven't been able to find it exactly on Numista/NGC/Krause yet.
New info courtesy @The Eidolon and @Bradley Trotter

Middle middle:

Country: Austria / German States
Specs: 2.0g (weight) 21.5mm (diameter)
Denomination: 3 Kreuzer
Date: unknown

Middle right:

Country: Poland / German States / Austria
Specs: 1.0g (weight) 13mm (diameter)
Denomination: unknown
Date: unknown

Bottom middle:

Country: unknown
Specs: 2.6g (weight) 23.5mm (diameter)
Denomination: unknown
Date: 175?

 

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Here's a possible match for the Middle left.

https://en.numista.com/catalogue/pieces78799.html

The Bottom Middle is probably something similar to this.

https://en.numista.com/catalogue/pieces90367.html

 

I think the crossed keys on the middle left represent the city of Riga.
Here's my 1612 solidus from Polish-ruled Livonia for comparison.
There are many different text variations around the perimeter for these types, so don't worry if the letters don't seem to be an exact match.

 

The last one is Prussia, Friedrich II the Great.

 

@stldanceartist you can do an advanced search on numista, putting in what you know diameter, year, metal, etc. www.numista.com.