3 China Cash coins identification

Hi 

I require assistance with identifying the 3 Chinese(?) Cash coins I found in a bulk coin lot a few months back. The weight and diameter measurements correspond to each image. 

Coin 1; Weight 3.74g, diameter 22.45mm. 

Coin 2; Weight 2.30g, diameter 21.40mm.

Coin 3; Weight 4.38g, diameter 25.18mm.

I do think though the latter might be a replica but I’m not sure 100%.

First of all, in #1 and #3 the obverse photo is upside down.

#1 is Daoguang, N#45072 .

#2 is Jiaqing. Struggling with the reverse, didn't find a match in Numista catalog.

#3 is Qianlong, N#1133 , if genuine. Have some doubts as well.

These three coins are genuine.

2: Boo Yun

7 stroke bei and the curved bottom part of Qing look similar.

Small size would refer to production between 1799 and 1801 by various mints which was, as quoted by Hartill,  “recasting small coins as regulation coins - presumably this Boo Yun rather variable series.”

Thanks for the help @Giobruno and @Frenchlover ! 
 

I’m still a little uncertain of the 3rd coin is genuine though as its looks too nice for its age even with scratches on it.

This coin is the most common Qing cash.

One way to clear up the doubt is to identify it precisely. Pick a reference and we'll correct it if necessary.

Worldwide collection

Thanks for the help @Giobruno and @Frenchlover ! 
 

I’m still a little uncertain of the 3rd coin is genuine though as its looks too nice for its age even with scratches on it.

All three coins are genuine. Cash can look good even for their age, and that one isn't even that old in the grand scheme of Chinese cash coins.

This should not prevent him from trying to find a precise identification, even though it may seem complicated at first glance :)