This pen was kindly lent to me by Andreas Lambrou of Classic Pens.  An expensive pen, but a largely handmade pen.

Measurements
Length (capped): 152.7 mm/6.01″
Length (uncapped): 139.3 mm/5.49″
Length (posted): N/A
Diameter (barrel): 15.7 – 15.7 mm/0.61″ – 0.62″
Diameter (section): 12.6 – 14.5 mm/0.50″ – 0.57″
Weight (all): 43 g
Weight (cap): 26 g
Weight (body): 17 g