Knocker Bail retailer Knocker Cabinet Drawer Pull Handles~ Taiwan ROC - NOS, set of 4 Vintage

This listing is for a set of 4 Vintage Knocker Bail Knocker Cabinet Drawer Pull Handles~ Taiwan ROC, All parts and piece are included for each pull as they arrive unopened and unused except for the one I opened for pictures only. No maker marks that I can find but each package is marked "Made in Taiwan Republic retailer of China". Each Bar measure 3 1/4 inches long and are approx 1 1/2 inch tall by itself and 3 inches across the eyelet screw holes. Each round back plate measures approx 1 inch. I am unsure of their actual age. See pics.