Instructions
Observe the blade of the knife to find the name of the Puma make. All authentic Puma's have the name printed on the blade.
Look on the blade for the knife number of succession in the make or line of the Puma knife. Each blade is stamped with a number indicating how many knives of that make were produced through the manufacture date. For example, the knives are numbered in ascending numbers over the years to establish the age of the knife in the same manner as numbered collectible artwork.
Examine the type of steel in an imprint on the knife blade. Antiques bear the words "Genuine Pumaster Steel Germany." These have carbon steel blades. The newer models that do not have these words on them incorporate stainless steel blades in their manufacturing process.
Look for the official Puma insignia on the blade. The insignia includes a diamond shape with a profile view of a puma head inside it and the word Puma underneath the diamond.