newbie would like to know if this vase is Crown Lynn or Titian ? It's Titian BNB 305

and the base ...

My thoughts are :
It's definitely not Crown Lynn .... as Crown Lynn didn't use letters and numbers.
I don't think it's Titian as I think I've seen 2 letters and then a number ... not three letters used.
So I'm guessing that it is a British Pottery vase .... as I know very little about British Pottery I can't help any further. I'd like to add though that the numbering systems used in New Zealand were brought here by pottery craftsmen from Britain.

One of these sold on Trademe recently - 321465912 - with a sticker on it which looks like it says "Astor Studio Ware".

Other references I've seen to "Astor" have it as a tableware pattern by various manufacturers, eg Spode, Nortitake and Wedgwood. I'll keep looking.

PS: also found this older TM listing attributed to Titian with an impressed "BNB 300" 266093886

Titian did use three letters and then a number!!
I just came across this in the Crown Lynn notes from the Museum where they give the old Titian shapes new numbers .... eg 2115 Long Bead on line Bowl (was BNB 302) Titian
...and there are others with three letters.
So I would say that your vase is Titian

Yay! Thanks for all the great investigating.

As I tripped over this while I was looking for something else -
I feel that it was meant to be .... to find your answer newbie
We are all learners on here .... no pompus experts .... and what does ex-pert mean huh ??
The mind boggles lmaoooooo