4 blade rotor Head

[paultech6]

Found an all metal 4 bladed rotor head for 10mm shaft in a box of spare parts for a schluter champion what should i do with it.
Paul

PS One day I might wanna electric heli :roll:
Its on Ebay Now

[luisalv]

do you still have the 4 blade rotor Head and if so how much. thanks

[Spidious]

That looks like a very old style four bladed head ?