Knobs for a Lecroy oscilloscope 93xx series (mine is a 9374l). I've done both original large and small replacements that fit on the standard encoder, and a new set that will fit on a modern encoder such as the Arduino Encoder with a D shaft. These look nearly identical to the original knobs thanks to the original knob from Galaxius.

These have been repaired using Netfabb as the original model seems to need fixing.