1st coin is an amulet reproduction made to look like an HT#26.28 The rest of the coins I'm not sure about, possibly amulets/charms as well. All authentic pieces should have square holes, not round.
I am going to try to do as much as I can. I will do a couple as I have time. I do not know how to manipulate the pictures, so I will have to with text. H#s refer to Cast Chinese Coins by David Hartill. CCC refers to Classic Chinese Charms. This + Sequel to Classic Chinese Charms (SCCC) are the references I use. #1 Coin12.jpg is the obverse and coin13.jpg is the reverse Alchemy charm, brass, Qing Dynasty, rank 7 - $24, CCC 1793 #2 Coin 11.jpg is the obverse and Coin3.jpg is the reverse. "Tian Zi Wan Nian" charm, rank 7 - $18, brass, Qing Dynasty, CCC 1441 #3 Coin16.jpg is the obverse and coin17.jpg is the reverse "Xian Feng yuan bao" Aksu, Xinjiang 1854-59 Hartill # 22.1078-22.1082 Emperor Wen Zong (1851-61) #4 Coin14.jpg (upside down) is the obverse and Coin15.jpg is the reverse "Xian Feng zhong bao" Board of Revenue mint 1857-61 Hartill $ 22.698-22.701 Emperor Wen Zong (1851-61)
I can't determine any facts from just the pictures, but yes, I believe those two are actual cash issued by a government mint. I can't find exact matches for two of the charms, but they are close enough to put them in the charm category. The first piece that you have pictured in your hand is probably a modern charm. I could not find it in the reference books and it has a "different" style to it. When I put the characters in Google (Jin tong guo bao), I found a site where you could buy a gold version for the "special price" of 10 dollars.
I have some question for these coin. 1. the material of coin 2.attrition rate 3.patterm of coin so I think these coin are fake