The Montblanc two-digit model number pens were replaced in 1971 with the Classic line-up. The pens reverted back to a three-digit numbering system. The pens were offered in Matt Gold, Matt Silver, Matt Black, Polished Black, Grey, Red (Burgundy), Green and Stainless Steel. The pens were offered in just one size. 

The No. 320P is in the Economy Range tier. The pen features an 14k Gold nib. The pen is in F, poor condition. The nib is bent and needs to be repaired.

- Manufacturer/Model: Montblanc No. 320P
- Year of Manufacture: 1971-1979
- Color: Black, Gold
- Material: Resin
- Nib: Montblanc 14K Gold Nib, Fine (Non-Functional)
- Filling System: Standard International Cartridge/Converter (Not Incl.)
- Condition Rank: (F) Poor Condition. Please See Photos and Condition Rank Guide.
- Warranty: 90 days on Piston service
- Country of Manufacture: Germany

Condition Rank Guide:
-N: Item is in New Old Stock condition (NOS). Shows little to no signs of use apart from some minor handling wear.
-A: Item is in Excellent condition. Micro-scratches can be seen on the barrel, cap, and/or grip section. No noticeable scuffs, chips, or cracks.
-B: Item is in Very Good condition. Minor scratches and scuffs can be seen on the barrel, cap, and/or grip section. No chips or cracks.
-C: Item is in Good condition. Moderate scratches and scuffs can be seen on the barrel, cap, and/or grip section. No chips or cracks.
-D: Item is in Fair condition. Heavy scratches and scuffs can be seen on the barrel, cap, and/or grip section. May have small chips or cracks. See description.
-F: Item is in Poor condition. Item is not functional. For parts or repair only.