I agree with Ipcress, two of those are interesting. I would e-mail these pictures to a number of Auction Houses (some are very slow in responding) and you will get a selection of free appraisals. Don't just rely on one .... you have decent photos, e-mails are free, get searching for good auction houses (where are you located?). Even many local Auction Houses employ the expertise of specialists, the one that is local to me has a Fine Art specialist, a Paintings expert, a Jewelry expert, and the owner knows a lot about your particular items. These people work as independent consultants and all have at some point worked for big houses such as Sotherby.
Don't rely just on a single appraisal. If you look at my post on Ebay chat about a Bamboo purse I posted 2 - 3 years ago, I took that to one local Auction House, run by a very high profile auctioneer who dismissed it as 1980's tourist tat. Following posting it on this site where one member found a couple of very similar ones, I took it to another auction house (the first one I mentioned above) and they put it 100 years earlier, 1870 - 1880!!! But had no real idea about a value but thought that they'd put it in with a low estimate of £180 - £250 and let it find its own value (they don't always know everything, and I shy away from people who think that they do, so it was a pleasantly honest response).
Good luck with those pieces and let us know how you get on......Did you say how they came into your possession?