knob Diameter: 26x
knob materal：ABS with brass insert 
knob Shaft type:6.35mm(1/4")  or 6.0mm   Set-Screw
knob colour:black,grey,black,blue,Maroon,Different colors on demand
Knob/Skirt diameter: 2,55cm
Hole/shaft diameter: knurled 0,55cm or optional 1/4 shaft version
Skirt: 2mm Setback for Nuts up to 14,5mm
Height with skirt: 1,8cm
Height without skirt: 1,6cm
Material: Plastic, ABS
 

Features

• Same size and look like the original Marconi knob
• Maroon color, blue and grey available
• Optionale up to 2 set screw or burled edition for split shafts
• Custom skirt with a pocket for pot and switch nuts up to 16mm and 2mm deph
• Brass screws (Screw version)
• British vintage look

Some pics show a NV73 raw kit (not included) from David.
To find out more about this awesome DIY preamp project visit thedonclassics.com

This knob has a similar look like the Neve Marconi knob but it´s not an original Neve knob.
You can drill the shaft to your needs or upgrade it with set screw kit to use it as replacement knob for your gear.