First one: Made during QiangLong reign. 2nd one: studio glass 3rd: japanese. 4th: the same as first.
Feb 02, 2012
marks by: James
The left one is an impressed mark says Qianlong but is modern. 2nd one is a stained liuli glass mark, modern but could worth something. 3rd I think is Japanese, modern. And the 4th is a spurious Qianlong mark.