@jaym, sorry that it took me a little time to get to this, but I'm about 80% sure I've got a match for the top coin. Based on the use of seal script and oddly elongated bao (character on the left) plus the crescent and dot on the rev, I think that it was issued by Emperor Xiao Zong (1163-1190 AD). The specific attribution looks like Hartill 17.90 (not in numista, but here is a link to a German website with a pic: http://www.chinazeug.de/c1069.htm
There are others here who are much better at these cast Chinese cash attributions than I am and I look forward to seeing what other folks think.
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