The 2 coins that say "Tai Ching Ti Kuo Copper" appear to be from Hopei (formerly Chihli) province. From what I can find online, they date to 1905-1908 range. There are some minor character differences between the 2, but one has medallic & one has coin orientation. The "5 Fun" coin may be a fantasy piece - it's in much better shape than the others, and the reverse appears to be rotated 90 degrees off from either coin or medallic orientation. The only coin that actually says "Ten Cash" appears to be from Kiansu-Kiangsoo Province. Am I right in ID'ing it as a y#162.11 (c1905)?
While looking for online info, I came across this interesting article: http://ykleungn.tripod.com/peiyang.htm