Green Lustrous Vase - Help Please

I have purchased five intriguing pieces from a local auction but haven’t a clue what they are apart from the fact that I like them .  Any help with identifying them or let me know how they were made would be really helpful (I am currently on a steep learning curve). The first is a green vase, quite lustrous, only small (14 cms high by 15 cms diameter) but heavy (1.46 kgs). It seems to be well made but with no mark.

I removed the duplicate images.

Yes it does look well made, but we always need base pics even if unmarked.

I’m afraid I’m new to all this, so my apologies. I’m not great with technology either Here is a photo of the base and many thanks for your help.