Unidentified Propellor 3.5meter wood 8 bolts

[Epke]

Can someone help me identifying a wooden propeller 3.5m span with 8 bolt holes and metal wing protection. Used to have canvas protection (some parts visible under metal). Used to have carving BMW 1918 according to previous owner. Told to originate from Netherlands Soesterbeg military airport where WW1 planes used to be seized. There were only 100+ planes seized in that time given Netherlands neutrality and a databse exists. I am unable to match this one with propellor in the woodenpropellor database. Mainly because of it's size.

Edit; providing more details. I now understand that there are many, many types of propellers..

Span: 350cm / 11 feet '6
Center Bore: 8 cm / 3.15 inch
Number of Bolts: 8
Bolt hole diameter: 1,4 cm / 0.5 inch
Bolt hole circle (measured from center bolt hole to opposite center bolt hole): 19,5 cm / 7.68 inch
Hub Thickness/ Height: 8.5 m
Maximum width: 18cm / 7 inch
No markings