Pair of 64 PIERI Lamps

These were my granmother's lamps, passed onto my mother, who never used them, and kept them tucked away. Now I have them as she is gone too. The paint and whatever material they are made of is in excellent condition. No chips....no fading... We plugged them i and they do work, but have no lamp shades. They were never out, or used so I don't know what kind of shade was used on these.
These have been stored in a closet for years, so I dont know anything except my mother said they were collectibles and valuable..
Have seen some PIERI lamps on EBAy, but NEVER any like these! Dont know what you would call them, peasant children, farmer children??
Any information would be greatly appreciated...
K.Zentz
kzentz53@att.net