Multi ring groove rivet hack screw of services

Item No.: 151
Huck rivet _ Huck rivet price _ high-quality group of Huck rivet
Two Different Used Vintage Glass Door knobs. One octagon shape and the other fluted. No glass issues but the octagonal knob is loose in the brass partially during knob operation. Still functional. Buyer to pay shipping. Shipping combined on multiple purchases. Thank you for looking !!!