After the first listing expired with no bids, I emailed the seller to explain that his 51 Flighter LL pencil had the wrong cap and included a link to Ernesto's pencil page. The seller replied: "Thanks for writing. Yes, you are correct. In 1955 the only pens PARKER called Flighter had the gold clip and band. They offered a steel with chrome trim version a few years later and named it the Jet Flighter but this pencil doesn't quite warrant that name either. I'll revise the listing accordingly."
First listing: http://www.ebay.com/itm/131574201689
Offered for your consideration is a PARKER “51” Liquid Lead or LL pencil, USA-made in 1955. The 51 LL was a companion to PARKER’s venerable “51” fountain pen and is not very common. It’s even rarer in the all-brushed metal “Flighter” variant.
Second listing: http://www.ebay.com/itm/131600608327
Offered for your consideration is a PARKER “51” Liquid Lead or LL pencil, USA-made in 1955. The 51 LL was a companion to PARKER’s venerable “51” fountain pen and is not very common. It’s even rarer in the all-brushed metal with chrome clip variant (identical to the "Flighter" except for there's no gold trim on the cap).
What a load of crap.