vintage Nachtmann crystal bowl, oval flower boat shape w/ cut pinwheel star

Vintage boat shaped oval crystal bowl with cut pinwheel, or whirling star / buzz saw type design. Not marked or signed that I could find. I believe this is Nachtmann crystal?

It's 9" long x 5" wide, height at curved rim ranges from about 3 1/2" to 4 1/2" tall.

This has a little light scratching, mostly on the bottom, from shelf wear. It's clear and sparkling, a lovely, very heavy piece.