Help Identifying Vietnamese vase

Hi, I need some help identifying some of my grandfathers old vase, purchased around the 60's-70's in either Vietnam or Malaysia as he has some other vases with NG Lee Seng and DONA Saigon makers mark on them. about 500mm in height. The vase has a makers mark i can't make out. Any help would be appreciated!

Welcome to the forum. Please post the stool on a separate thread; I’ve edited the post because the stool was by a different manufacturer and it’s confusing if there are a mix of pots on an ID request.

The vase is by Dona Ceramics, Saigon. The ink stamp used by the manufacturer is often washed off because it’s not covered by glaze

Ok no problem, thanks for the reply. Any rough idea on it's value? There aren't too many around to compare unfortunately.

Not worth much in the UK but I see you're in Australia so it may be different there. Best to check completed listings on ebay.