QuatroH: mostly reverse ring 004
QuatroH: mostly reverse ring 005
QuatroH: mostly reverse ring 008
QuatroH: mostly reverse ring 010
QuatroH: mostly reverse ring 012
QuatroH: mostly reverse ring 013
QuatroH: mostly reverse ring 017
QuatroH: mostly reverse ring 022
QuatroH: mostly reverse ring 027
QuatroH: mostly reverse ring 028