Parker 75 Fountain Pen Nib Feed Units

Nibs for Parker 75 fountain pens. Original Parker parts. 
Three types available:
Serviced: 14k nibs that have been recently tuned up by a notable Nibmeister. USA made.
USA: 14k nibs made by Parker in the USA. New old stock.
French: 14k or 18K nibs made in France by Parker. New old stock.

What follows are detailed descriptions by the Nibmeister who recently serviced these nibs:
Serviced 1: Medium. 0.6mm line. Writes nicely & gives a consistent line.
Serviced 2: Extra Fine. 0.4 mm line. Feed is marked "B" but all 75 feeds are the same.
Serviced 3: Broad. 0.7 mm line. Feed is marked "M", but all 75 feeds are the same. 
Serviced 4: Medium. 0.6 mm line. Feed is marked "66".
Serviced 5: Medium. 0.6 mm line. Feed is marked "XF" but all 75 feeds are the same.
Serviced 6: Fine. 0.5 mm line. Feed is marked "XF" but all 75 feeds are the same.
Serviced 7: Medium. 0.6 mm line.
Serviced 8: Extra Fine. 0.4 mm line. 
Serviced 9: Fine/Medium. 0.55 mm line. 
Serviced 12: Fine. 0.5 mm line.
Serviced 13: Fine. 0.5 mm line.