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
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
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
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
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
15157: Parker Vacumatic Junior demonstrator: black pump-filler with transparency barrel, 12.15 cm long, gold filled trim, marked "DEMONSTRATOR/NOT FOR SALE". Sharp imprint with 4th quarter date code, nib slightly later with early 1936 date stamp. Some scratches to inside of barrel, fine transparency.
DATE: 1934 • CONDITION: fine • NIB: fine stub semiflex • $600
13855: Parker 51 demonstrator: transparent Vac-filler, USA production with good barrel imprint with 3rd quarter date code, 1/10 16K gold filled cap in grouped parallel lines pattern, clip however is distinctively Canadian with high Blue Diamond, box is also not USA; one stress line in blind cap (see detail).
DATE: 1947 • CONDITION: fine-exc • NIB: medium fine • $525
13875: Parker 51 demonstrator: transparent Vac-filler with Lustraloy cap, gold filled Blue Diamond clip, barrel imprint has been largely polished away but 4th quarter date code clearly visible; one stress mark over diaphragm seat, does not affect function (see detail), blue ink residue inside pen has not been fully removed, cap jewel a bit rough.
DATE: 1948 • CONDITION: fine • NIB: fine • $485
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
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
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