14886: Conklin 4 cutaway demonstrator: early mottled hard rubber slip-cap barrel assembly, 10.65 cm long, nickel-plated unmarked crescent, flat profile lock ring, 1903 latest patent date in imprint; appears to have been made from a factory reject barrel -- note that the "4" was stamped too hard and too close to the end of the barrel, breaking away some of the material (see detail).

DATE: c. 1906 • CONDITION: VG-fine • $225

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15119: Mabie Todd Swan Self-Filling cutaway demonstrator barrel: black chased hard rubber lever-filler, 9.3 cm long, nickel plated trim, New York production, shows classic Swan locking lever action.

DATE: c. 1920 • CONDITION: exc • $95

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13887: Matador Click 007 demonstrator in box: transparent blue piston-filler, 13 cm long, nickel plated trim, gold plated nib, new old stock with clip tag, some internal stress marks visible from original manufacture, two available.

DATE: c. 1960 • CONDITION: near mint • $265

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15325: Parker 28 Jack-Knife Safety: oversize black hard rubber screw-cap eyedropper-filler with transparent Bakelite barrel, 13.5 cm long, nickel plated trim; in Parker's catalog, second only to the Black Giant in size, and the largest model offered with a Bakelite barrel; good cap imprint with 1912 patent date, barrel imprint clean, includes "BAKELITE" lower line; some minor scuffs to the cap, tool marks to sides of crown, big #8 Lucky Curve nib, intact Lucky Curve feed.

DATE: c. 1915 • CONDITION: VG • NIB: medium fine flex • $3250

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13764: Parker 24 Jack-Knife Safety: button-filler with black hard rubber cap, transparent Bakelite barrel, 13.4 cm long, nickel plated trim, #4 teardrop-vent nib has barely visible hairline at base (see details) and is fully functional, Lucky Curve feed is intact, as is original riveted pressure bar; name engraved on barrel, a transparent silicone sac has been installed.

DATE: c. 1918 • CONDITION: fine • NIB: fine semiflex • $565

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13912: Rotring Tikk Kuli ballpoint demonstrator: transparent dealer-only version, 12.2 cm long, German made, thin wash plating to trim mostly worn off, but condition otherwise fine to excellent.

DATE: c. 1960 • CONDITION: VG-fine • $165

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11739: Sheaffer demonstrator pencil: factory cutaway, 13 cm long, nickel-plated all-metal construction, uses 1.1 mm lead, mechanism propels and retracts; marked with 1918 patent date and "PAT.PEND'G" on crown, eraser pulls out from end.

DATE: c. 1920 • CONDITION: fine-exc • $125

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12184: Sheaffer Lifetime demonstrator pencil: factory cutaway, 13 cm long, nickel-plated all-metal construction, uses 1.1 mm lead, mechanism propels and retracts; marked "PAT.-- PAT.PENDING" on crown and "DEMONSTRATOR" on barrel (most examples lack the "DEMONSTRATOR" marking). Eraser pulls out from end, dents on barrel on either side of the clip, dings and cut marks to cap crown, mechanism tight but fully functional.

DATE: c. 1921 • CONDITION: G* • $65

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15999: Waterman Ink-Vue demonstrator: transparent celluloid with black ends, 12.85 cm long, clipless version without end globe or cap band specially furnished for use with Signagraph check-signing machine; not much used but fine network of stress cracks over the inner cap (see details), band of wear to barrel where clamped in Signagraph; original sac has not been replaced.

DATE: c. 1939 • CONDITION: fine* • NIB: medium semiflex • $395

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