Acquired these over the years while constructing my CH300 with an 0320 Lycoming spinning a McCauley prop. The Orange one is for 3 blades, 13"diameter x 17"tall and includes an almost-matching back plate plus an "extra" for hole positions.

The silver one has no perforations, is 11 3/4" diameter x 13" tall, and includes a front plate & back plate, both un-configured, plus another back plate configured for prop bolts & rivnuts.

The white one is fiberglass, 11 1/2" diameter x 11" tall,  with no perforations, but marked for 2-blade installation, with a custom backing plate accomodating prop bolts and rivnuts.

Should any of these be of interest to you, please contact me at "phbarbour@hotmail.com" as I seldom am online anymore. Count on prices being less than 50% of current value. Buyer will pay all shipping/customs charges.