We sent prop off for overhaul and seems the shop can not locate the prop attachment ferrules and those can not be reused in the same blade and have max # of drilling / reinstalling of 4.
Looks to be a C3054 ferrule, but still need to verify that #. If anyone has an original non serviceable prop as wall ornament or hangar dust collector, we could trade ferrules if yours are still serviceable.
If your not sure what this part is: http://sbiii.com/avpix/ercoterm.gif
Also, part images:
https://www.wbparts.com/partphotos-public/2020/11/C3054_1610-00-133-7124_814881.jpg
https://www.wbparts.com/partphotos-public/2020/11/C3054_1610-00-133-7124_814882.jpg