China Stamps Qing Empire 1878- 3 Large Dragons 1 Mh

I don't know much about these nice old stamps but I know there good ones as they weren't in an album and everything I've found in the huge collection I inherited has been better than the normal sort one of these is mint but all 3 have been hinged probably a few times I'd guess but there not thin or damaged anywhere I'll leave it up to you who know thanks ps there is a few more stock cards and alot of old pages of nice china I've found in this latest box I've opened