Chinese coins. Fake(probably) or real.

Looking for information. After some initial searches I tried a magnet and they did not stick to any of the 3. I also weighed them. None were in the low 20's but also weren't spot on the necessary weights, so I looked up what(if any) metal lost could occur. The coins were off by a gram or so. Any info is helpful.

Top: KWANG TUNG 7 mace 3 candareens
Middle: Fat Man dollar(7 characters vs 6 above head)
Bottom:KIANG NAN 7 mace 2 candareens

I believe all 3 are fake
Im sure for the last 2 that they are fake

What makes you think they're fake? (Not disagreeing, just want to learn)

Quote: "Jacob1080"​What makes you think they're fake? (Not disagreeing, just want to learn)

They have wrong characters/lettering.

Quote: "KLiao"​

Quote: "Jacob1080"​What makes you think they're fake? (Not disagreeing, just want to learn)

​They have wrong characters/lettering.

​indeed.

You should check for silver:
http://www.silvercoins.com/fake-silver-coins-14-ways-to-spot-counterfeits/
https://www.thesprucecrafts.com/chinese-coin-counterfeiting-ring-4071202

The fatman dollar is one of the most found as replica
https://www.google.com/search?q=fatman+dollar&source=lnms&tbm=isch&sa=X&ved=0ahUKEwirlrTZm57kAhXBK1AKHfy5AwUQ_AUIESgB&biw=1536&bih=723

Thank you both for your input!