temple vase

I bought a temple vase about 15 years ago at an antique show, I was told by the dealer that it was a temple vase and that he got it through an estate sale and that he had it for at least 30 years, the vase is 24 1/2 inches tall and 16 inches wide, it has a green glaze and dragons on both sides, I paid $800.00 then, I have not been able to find anything like it sense then to compare, I would appreciate any info, thank you