Double cottered crankset NERVAR. crank arms: 170 mm. bottom bracket still good rolling. axle length: 136 mm. thread: 1,37 x 24 Tpi / 68 mm (BSA). weight of set: 1491 grams.
Standard square taper. Size is 170mm. BCD is 122. Original round 52/42 chainrings in great shape. Pedal threads are English. Threading and tapers are in great shape. I took a close up picture of the chainring teeth.