Parker Lucky Curve “Jacknife” pen, the predecessor to the Duofold with the successful Parker button filler mechanism. In smooth black hard rubber with nickel clip, model 25-JK and priced at $5.25 in the 1918 Catalogue. The pen has the Lucky Curve barrel imprint with the 1905 and 1912 patents. The cap imprint is “JACK-KNIFE SAFETY PAT. JUNE 4 1912”. The pen has the Lucky Curve No. 5 nib, a fine-medium point with easy flex.
Closed the pen is 13.5cm (over 6 ¼ inches) and with the cap posted, 17.3cm (6 ¾ inches), slightly shorter than the Duofold Senior.
Condition: Very good; the nickel clip has pock marks and wear though is good and tight to the cap. Otherwise the pen is in very good condition, the black hard rubber has excellent glossy colour with just the usual marks of use visible under magnification; the milled cap top is still crisp, the imprints are worn but legible. The pen has been restored and fills well and the Lucky Curve nib is a lovely expressive, flexible writer.
Price: $149 £105 €125 plus postage:
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USA, Canada, C and S America: $20
Asia, Australia, NZ: $20
UK Special Delivery: £7.25