Triple Billing: Culpepper & Co. Teams with Bill Ruple and Moki Knife Co. for Limited Edition Slipjoint (including print correction)

We do our best to be the most accurate and informative publication in the knife industry, but mistakes happen. When it is online, it is a simple fix, but print is a different animal. In the September 2020 issue of Knife Magazine, we shared the new Culpepper/Bill Ruple/Moki Knife collaboration and I mistakenly stated that the knives were individually serialized. This is not the case, rather they each are labeled as “1 of 125”. We are correcting this error here.

The revised text reads:

Collaborations are nothing new in the knife industry, but through them many great things have been born. The challenge is to create something that showcases the best qualities that each partner brings to the project. It becomes even more challenging when you combine three names, each with decades of experience in the industry, but when done properly the results can be quite stunning.

In the case of the new Ruple 1, this mean combining the design prowess of Bill Ruple (who also provided the prototypes) with the production precision and capacity of Japan’s Moki Knife Company and premium stag and bone from Culpepper and Co.

“Our goal was to create as close to a custom Ruple folder as we could, and put it in customer and collector’s hands for about 1/3 the price,” said Joe Culpepper. “We think it’s a home run.”

The Ruple 1 will be produced as runs of 125 knives for each of the four different handle materials: amber stag (MSRP $425), and natural stag ($395), as well as mahogany or bourbon dyed jigged bone ($300 each). Serious collectors can even save $170 by purchasing the complete set for $1250.

The knife pattern is a single blade trapper with a satin finished, clip point recurve VG10 blade. Solid half stops, spun pins, and a classic “bomb” shield round out the package. The closed length is 41/8” and the blade length is 31/2”.

Pre-orders for the Ruple 1 are currently underway, with delivery scheduled for November. They are available exclusively from Culpepper’s sister company – Old School Knife Works ( / 828-524-6842). More information on Culpepper and Co. can be found at You can learn more about knifemaker Bill Ruple from the Worldwide Knifemaker Database and Directory at our website. (