Victorinox developed the No. 135 m model, referred to as "Grand Prix", around 1973. It was a 4-ply model with scissors, metal file/saw and the Phillips screwdriver on the back.
The first models No. 135 m still had the small cutting blade in the old form. Typical for model no. 135 m was an insert made of German silver/stainless steel with the motif of a Ford T model. This model is no longer in production.
The model no. 135 m had a small and a large cutting blade as well as the can opener and the screwdriver, scissors, a metal file/saw, a chisel (later version), an awl and a small and a Phillips screwdriver.
Model No.135m had tweezers and toothpicks as standard and no shackle/keyring.
Big cutting blade: 2.7 mm; small cutting blade: 1.7 mm; Screwdriver: 2.0mm; Can opener: 2.0 mm; Metal saw/file: 1.8 mm; Scissors: 2.5mm; Phillips screwdriver: 2.8mm; Awl: 2.0 mm; Chisel: 1.8mm
Model no. 135 m is a 4-layer pocket knife. Between the bottom layer (small and large cutting blade and Phillips screwdriver on the back) and the top layer (screwdriver and can opener and awl on the back), the scissors are on the second layer and the metalsaw/file with the chisel is on the third layer (later version) mounted on the back, which rotate around the base rivet together with a small cutting blade and screwdriver. Awl and Phillips screwdriver are attached to the center rivet.
Victorinox used red Cellidor scales for the No. 135 m model.
The circuit boards are made of aluminum, the intermediate layer is made of nickel silver.
Trade name: Grand Prix