Grandma's Apron

The pictures are of my grandmother's apron. She was a seamstress and tailor. It's sleeveless, has a pocket in the front (hard to tell due to pattern) and ties in the back. I don't recall Grandma wearing it but my mom says she wore those all the time and this was the least worn one, so I go it. Does anyone know the time period that this material/pattern would have been in style?
Thanks for looking!