Masterpiece Delgado Blue Grotto

The new color of Delgado Blue Grotto is using multi-compressed (Plaques) PMMA
which is just developed by Penlux. The material is combined multiple layers of
PMMA. Each layer must be mirror polished, then high pressure with glued.
The grip section uses brass material, so the balance of complete pen will be
moved forward to the grip section. It will make more comfortable when you
are writing. All the trim will be palladium plated.
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Length: 143 mm
Weight: 26 g
Diameter: 15.8 mm
Ink capacity: 1 ml
Trim: Palladium plated
Piston : RD1.8 aluminum alloy piston
Nib: Jowo No. 6 steel. F, M, B, 1.1tsub, FX
14K flex and 18K F, and 18K M.