This wooden propeller is of laminated construction with the central hub plate intact and bolted on to the propeller itself. The whole of the wooden surface has an attractive brown varnish applied with the blade tips sheathed in brass which is attached with rivets. The left blade is stamped "SC4372". The hub stamps are only partially legible with "100 H P GNOME LANG PROPELLER" legible before it is covered by the hub. The right side is stamped "2297" and "U/S/A/88" with the Lang Propeller Company decal on the blade itself. This propeller would have originally been used with the Gnome Monosoupape B-2 rotary engine and measures 92 inches. This engine was popular during World War I because of its increased reliability compared to other offerings of the time. British aviation pioneer Thomas Sopwith famously said the invention of the Monosoupape engine was the largest advancement in the field of aviation.

Very fine, retaining 97% of the varnish with some dings and dents from use as well as a small chip on the trailing edge of the right blade. The hub plate is covered in a mostly dark oxidation, and the brass blade tips have an attractive patina. This would make an excellent addition to any World War I collection!