Sheaffer Touchdown & Snorkel
Pen Profiles: Snorkel & Touchdown - PFM
For more, see Sheaffer flat-tops, 1912 to c. 1939 & Sheaffer streamline, 1929 to date (including late Touchdown-fillers, such as Imperials) & Sheaffer Pencils
9271: Sheaffer Touchdown Sentinel Deluxe: black pneumatic-filler, 13.4 cm long, stainless steel cap, gold filled trim, two-tone conical Triumph nib, section with transparent ink window. Rare salesman's demonstrator version, with barrel imprinted with "SHEAFFER'S RULE OF FOUR" (the four highlighted features of this model: the nib; the cap; the filling system; and the spring clip); transfer is worn but legible.
DATE: c. 1950
• CONDITION: fine-exc • NIB: fine • $150 
8762: Sheaffer Touchdown Sentinel Deluxe: burgundy pneumatic-filler, 13.4 cm long, stainless steel cap, gold filled trim, smooth two-tone conical Triumph nib, section with transparent ink window; initials "M.C.S" on back of cap band, ding to back of cap top (see detail).
DATE: c. 1951 • CONDITION: fine* • NIB:
extra-fine • $105
9260: Sheaffer Snorkel Sovereign: blue pneumatic-filler with patterned polished stainless steel cap, gold filled trim, smooth two-tone conventional open nib; usual small bumps to end of cap, otherwise clean.
DATE: c. 1954
• CONDITION: fine • NIB: medium • $105
9407: Sheaffer PFM V: oversize grey Snorkel-filler, slight mismatch with crisp gold filled Australian-made cap, very smooth inlaid nib marked USA; grey PFMs are hard to find, and nearly all PFM V caps extant show some bruising and plating wear -- this one is very clean indeed.
DATE: c. 1959 • CONDITION: exc •
NIB: medium semiflex • $600