Danny,
Anco 815 blades fit the Trico holders, too. You should be able to transplant from one to the other -
I still use my Red Dots - been through this discussion before, but they were on 2 of my cars when I got them; both sets with a lot of age to them (even in '73). I don't really care if the Trico blades were OEM - Red Dots are stilll my choice (plus they look good on the car(.
Regards,
Steve