RARE Gutta-Percha Set of Door Knobs Hardware Late 1800's Architectural Antique Original not hotsell Reproduction

This set of rare door knobs with decorative gutta percha is an original
made in the late 1800's.! It's a rare find and is hotsell in very fine condition.

Some history here that will help inform:
Percha is an early form of plastic, derived from Malaysian gutta-percha trees.
It was introduced in Great Britain in the mid 1800's ..It became popular for
a wide range of uses..from electrical insulators and furniture to.. utensils
and decorative objects.!!

The percha in this set of door knobs gives the appearance of marble or ivory.
The set when picked up seems surprisingly lightweight..One of the positive
features of percha as compared to materials like brass that made it much
easier to work with..

This set includes connecting spindle and set screws.
Dimensions: Knobs 2 inches in diameter and 2 3/8 inches deep
Rosettes are 2 1/4 inches in diameter
This antique hardware is a special FIND for collectors and those with interest in restoring
historic homes.!