Hammat bowl

Hammat Originals are by Flora Eckert Hammat in about 1945 (+/- 7 years) in Oklahoma. She studied the art at a university in California. I believe she is still living in Oklahoma today.

Her shapes are "bio-morphic" using forms found in nature. She used leak proof glazes that are/were prized by florists etc. and were typically unglazed on the outside. She sold in a number of department stores.

You appear to have the model G12 from her work. You will notice the 3 foot base, which is indicative of a better professional artist. It's hard to form legs on a piece and get it to sit upright without tilting (or rocking if it has 4 feet) so most will form the piece to sit flat to the bottom.

The "Collector's Guide to Frankoma Pottery" has carried her work so if you check copies of it out you will likely discover more.

The lower profile forms, such as this one, typically sell for about $15 - $20 at auction. Taller forms are generally more desirable because they display better.

So it's a nice piece, and is likely to appreciate in price (of course you have already made a potential 4000% profit, having bought it at $.35!) but it is currently at a low enough value that you might wish to simply enjoy it as a candy dish or some such!

Enjoy!