Older Chinese Coins?

My apologies for not replying sooner, got caught up with some family stuff, but none the less here are photo's of all the coins (And cheese grater thinggies) I currently have..

To quote Bruce Smith on these 'graters':

"An extensive listing of these objects appears in Volume 5 of Arthur Coole's Encyclopedia of Chinese Coins (Ch'i Heavy Sword Coins and Debatable Pieces of the Chou Era) published in 1976. Among other names, the Chinese call these things "Lung Niu Hsing" meaning "coiled dragon and stars". One side usually has a design of some sort, while the other side consists of short pegs (which are the "stars" in the Chinese name). Coole notes that a book by Ch'u Shang-lin published in 1819 says these objects were in use between 225 BC and 23 AD -- that is, during the Former Han dynasty. Dr. Turk believes these objects are agricultural amulets made during Eastern Han times. Turk also says that some pieces depict a man standing on a wall, and that that man is Ch'eng Huang, the god of the city wall and moat. However, according to Encyclopedia Sinica, the cult of Ch'eng Huang did not become widespread until Sung dynasty times. Aurel Stein found a fragment of one of these things at Lop Nor (see Ruins of Desert Cathay, volume 1 photo 117). One of these objects was found in a Han dynasty tomb at Shan county, Honan (see K'ao Ku Hsueh Pao 1965 #1). Archaeological Studies in Szechuan by Cheng Te-k'un shows two of these objects (plate 67) and seems to believe they date to Han dynasty times. Harada Yocrapo in an article titled: On the So Called Amulet of the Han Dynasty (Kahei #279 June 1942), shows another type which has a man sitting on a turtle at the end of the handle, instead of the dragon. Another type (Coole #6812 and 6817) depicts in the design two people and a bird sitting on top of a mountain, surrounded by a tiger, turtle, dragon and bird. This is most likely a representation of the Queen Mother of the West and her attendant, plus the Green Dragon of the East, the White Tiger of the West, the Turtle of the North, and the Red Bird of the South. Such depictions are common in Han dynasty art. However, one of this type was found in a Yuan dynasty tomb (Wen Wu 1987 #2 pg. 80); either a copy made of earlier designs, or an antique. Coole also shows two pieces depicting a goat (Coole #6793 and 6794), which Henry Ramsden says were recent fakes being sold to unsuspecting antique collectors in his day (around 1910). However, one such piece was illustrated in the 1875 supplement to Ku Ch'uan Hui. It is still unclear whether these objects were made as amulets or tools, but it is clear that they were not used as money -- since they date to the Han dynasty, when the use of round coins was well established"

I've seen these sell for $100-200 apiece, although it is a difficult market for these.

Wokring at a University has advantages. I now know what two of the Knife Coins mean....