Dark blue chore trousers where the fading has gone towards a lilac shade (ever so slightly) making it interesting. Made by the great brand Vetra, most likely 1960s. 39W 29.5L
Button fly and hook, belt loops, hip pockets, back pocket & tool pocket.
Extra taping around the waist. Vetra inner label.
100% cotton. 
Great worn condition, faded washed.