unidentified coins?

Hello all. I have a few coins that I need a little help to id. this one is in Hebrew, but I coundn"t find it under isreal
this one is identical to 1999 Bulgaria 20 Stotinki KM#241 but it appers to be brass not copper-nickel. I photoed it beside the other coins for referance
and this one is close to German States Wurttemberg KM#585 but the shield is different. Thank you in advance for any help you can render.

The first coin is from Israel, and I remember seeing a picture of it in this topic ...

https://en.numista.com/forum/topic4301.html

Kreuzer is usually Austrian

The third coin is from Bavaria and is KM# 463 with dates 1851-1856

It is not on Numista (assuming I found the correct coin) so you can add it.
The section is  'German states - Bavaria Thaler'
There is a picture on the site World Coin Gallery and it is on the page ...
http://worldcoingallery.com/countries/display.php?image=nmc2/73-bv463&desc=German%20State%20of%20%20Bavaria%20km463%201/2%20Kreuzer%20%281851-1856%29&query=German%20State%20of%20%20Bavaria

The second coin is interesting. NCG list only the KM#241, Bulgariancoins.com list all Bulgarian coins by type and year and they list only cupro nickel / zinc for that denomination.

 http://www.bulgariancoins.com/infoCoin.php?id=2251

Toning on silver or nickel coins can be misleading, the coin in the middle below is just a regular Peace Dollar I have which looks like it's gold or brass. It's just the same hue as a modern Presidential dollar. For comparison the third coin is a more regularly toned Peace Dollar of the same year. (hasty picture but you get the idea)

It is possible that it could be a tarnish. But i have never seen tarnish with an even tone across the entire coin including the reeding along the edge.

Quote: ctuckerIt is possible that it could be a tarnish. But i have never seen tarnish with an even tone across the entire coin including the reeding along the edge.

If you have an accurate digital scale you could weigh it. It ought to be 4 grams if the composition is correct.

3.95  grams. but the coin shows some wear so i would expect it to be a little lite. I saw an artical about finding density with a string, paper clip and a container of water. Does anyone know if its accurate and if I could use it to get an answer on this coin?

See this article in Numisdoc for measuring a coins density:
https://en.numista.com/numisdoc/measure-a-coin-s-density-27.html

Ok, I'm gonna give it a try. I'll let ya'll know how it turns out. Thanks for all the help everyone!!!