I'm hoping to get help with identifying these. They were given to my mother by my paternal grandmother in the 1960s. She passed a few weeks ago and I found them tucked into one of her drawers. The silk they were strung on was rotting, I removed it. Clearly there is damage. I gave them a gentle warm-water bath and am now pondering what to do. I'd like to make sure they can be passed to my granddaughter, but with the staining and damage I see - would it be better to dye them? Is dyeing them even possible? If so, what dye would work best?