Neuwertige schwarze Parker 45 Custom, feine 14K Feder, Kreidemarke, gewartet (M213)

For sale is a stunning totally mint black Parker 45 Custom fountain pen. There is a chalk mark remnant (F) on the barrel denoting a fine nib. I have seen these on French 45 Custom Fountain pens before, but no-one seems to know why they are there.

eBay