Wiss: Boker Knife Instructions
J Wiss bought Boker in March 1970 and owned it until it was sold along with the company in 1976. Dated November 1972. This most often appears on eBay with the 1973 Boker-Wiss Commemorative Pocket Knife (current auctions and completed auctions). The style is the Model 8313 Whittler. Also in PDF. After the purchase Cooper came out with these 1976 Instructions that excluded the Boker name. Apparently they initially didn't think the Boker name was worth keeping. They later changed their mind.