Help Identify this Arts and Crafts Vase

Can anyone help I.D. this vase. I have been curious about who made it for a very long time.

I simply can't figure out the makers mark on the bottom. It looks like a four pane window with an "A" in the upper left quadrant (?)

It appears to be from the craftsman era with a cherry blossom motif. The shape is typically called a "corseted" vase.

There is a lot of age residue inside at the bottom and near the neck. The bottom foot doesn't show much wear due to a "tripod" of glaze drips that elevate

it off the unglazed base.

I'd appreciate anything that could steer me in the right direction.

Thanks!

Welcome...Not my period (1900?) but looks interesting and well worth asking. May help to post a close photo of the mark please