I really don’t know much about Antonie Ehrlich, but I have owned some of her crochet pattern books, and I can say that they are exquisite!
Bedspread patterns for knitting and crocheting. Photos and pattern descriptions are available if you click the links above.
The Antonie Ehrlich Crochet Book No. 7, Filet Crochet
Gorgeous filet crochet patterns.