Yellow Dragon Vase. Please help me to identify it!

[williamh]

I have tried to search the stamp online but I have not find anything.  Could someone help me? Thank you

[Hmm]

It says ???????3??.  Can't read the last character.  But basically it says Jiangxi Jingdezhen porcelain.  As far as I know it wasn't until after the '49 revolution that the porcelain factories started joining together and using such seals. 

[peterp]

Looks like if it was ?, but it is irrelevant. The meaning here seems to be the no.3 factory. As Hmm indicated this would be a 1950s or later item.