Acoma Indian Pottery Dish with Lace Edge 50's

This belonged to my mother and she included a note in with the packing.  Note reads, "Bought from Acoma Indians on Reservation in New Mexico 1950-1955.  Bottom of dish says Acoma N.M."  Mint Condition.  Beautiful open design around edge.  No chips, cracks, etc.  Measures  4 1/2" across x 1 1/2"h.  Sits perfectly.

I can't seem to find one like it on the internet and was wondering what the value might be on this.

Thanks so much for your time!