Is this vase early Crown Lynn?

For some reason the glaze and part of the mark on the base makes me think it is early Crown Lynn/ Ambrico. It looks like Shape 43 although a different glaze.  There are two numbers etched on base, a “15” on its own and what looks like  “26” incorporated in a part circle that looks like a bit like the circle form of the old Made in NZ mark that Crown Lynn used in early days, although it doesn’t say Made in NZ .
Would appreciate any help to identify please.

Yes it looks like Shape 43

Many thanks Ev for prompt reply. I’m pleased I got this right. I’m guessing this would be late 1940s early 1950s.