These pens were kindly sent to me by Peter Ford of Mr Pen.
Measurements
Length (capped): 136.8 mm/5.39″
Length (uncapped): 119.7 mm/4.71″
Length (posted): 146.7 mm/5.78”
Diameter (section): 7.9 – 10.3 mm/0.31″ – 0.41″
Diameter (barrel): 8.5 – 11.5 mm/0.33″ – 0.45″
Weight (all): 30 g
Weight (cap): 17 g
Weight (body): 13 g