Identification of two US vases with AB markings

I have two vases that are inscribed AB on the bottoms and am not finding exact matches in my searches. On both of them it appears the center cross line of the A is connected to the top of the B, and the bottom right leg of the A connects to the center line of the B. One is a tall wrapped piece (about 12" in height) that separates at the middle and the edges curve inwards. The other is a modern triangular tube (about 6" in height) with a metallic-like finish, and has '94 beside the marking. They were acquired from the estate of a person in San Rafael, California who had many art vases, although some of them were purchased outside the state. Any suggestions on the maker would be appreciated, thank you.

They look very much like the work of a hobby potter.

The base is very clean (suggesting recent) and base edge is very raggerty, not refined and the AB mark looks very worked and not fluid, if you make x30 of these a day then your signature becomes very intuitive not laboured.

Thanks very much for your comments!

A lot of US studio potters are self taught and have a very local market. Possibly working in the area where you found them.