2 or 8 Draw knobs (DE72)

Hi, does anyone have any draw knobs they no longer want in good condition please? I have a set of drawers that should have 8 knobs on, like the photo shown, but 2 have gone missing. So I either need 2 replacement knobs or if the draw knobs are totally different in design, 8 to replace them all please. Thank you
The current ones measure 45mm across, 35mm deep and 53mm deep including the screw that comes out of the knob.