1c Green, Coil (448). Mint
N.H. joint line pair, rich color and detailed impression, Very Fine and
choice (Image) 
2c Red, Ty. I, Coil (449).
Mint N.H. joint line pair, exceptional centering with wide margins all
around, brilliant color and detailed impression.VERY FINE AND CHOICE. AN EXTREMELY RARE MINT NEVER-HINGED JOINT LINE PAIR OF THE 1915 2-CENT TYPE I VERTICAL COIL. AN OUTSTANDING RARITY.
Type I rotary press stamps were produced using the same master dies as had been used for flat plate printings. However, due to the curve of the plate to fit the rotary press, the impressions lacked some of the details of the flat plate printings. New dies were made with strengthened lines, resulting in the Type II stamps. After plate wear was noticed, further strengthening was necessary, resulting in the Type III stamps. Scott 449 was not produced until almost a year and a half after the Type I horizontal coil, Scott 453. Due to the unpopularity of vertical coils, this Type I stamp was in production for only a short period of time before being discontinued. The joint line pair offered here, in Mint N.H. condition and with such choice centering and color, is a major rarity. We doubt whether more than a handful exist in such condition.
With 1972 and 1998 P.F. certificates for line strip of four (Image)
2c Carmine, Ty. III, Coil
(450). Mint N.H. joint line pair, brilliant color, fresh and Very Fine
(Image) 
1c Green, Coil (452). Mint
N.H. joint line pair, almost perfectly centered, sharp impression,
Extremely Fine, with 1992 P.F. certificate
(Image) 
2c Carmine Rose, Ty. I, Coil
(453). Mint N.H. joint line pair, almost perfectly centered (the right
stamp with Jumbo margins all around), beautiful bright color on white
paperEXTREMELY FINE GEM. A SUPERB MINT NEVER-HINGED GUIDE LINE PAIR OF SCOTT 453 IN THE FINEST CONDITION ATTAINABLE.
The Type I rotary press stamps were produced using the same master dies as had been used for flat plate printings. However, due to the curve of the plate to fit the rotary press, the impressions lacked some of the details of the flat plate printings. New dies were made with strengthened lines, resulting in the Type II stamps. (Image)
2c Red, Ty. II, Coil
(454). Mint N.H. joint line pair, well-centered, detailed impression,
post-office fresh, Very Fine and choice, with 1989 P.F. certificate (Image) 
3c Violet, Coil (456).
Mint N.H. joint line pair, choice centering with wide margins, fresh color
and crisp impressionEXTREMELY FINE. A SUPERB MINT NEVER-HINGED JOINT LINE PAIR OF THE 1916 3-CENT HORIZONTAL COIL.
With 1994 P.F. certificate (Image)
4c Brown, Coil (457). Mint
N.H. joint line pair, rich color and proof-like impression, Very Fine and
choice, with 1987 P.F. certificate (Image) 
5c Blue, Coil (458). Mint
N.H. joint line pair, almost perfect centering with wide margins, fresh
color and sharp impression, Extremely Fine
(Image) 
2c Carmine, Ty. I, Imperforate
Coil (459). Mint N.H., rich color, Extremely Fine
(Image) 
$1.00 Violet Black (460).
Mint N.H., near perfect centering with wide and well-balanced margins, deep
rich color and sharp proof-like impression on bright paperEXTREMELY FINE GEM. THIS SUPERB EXAMPLE OF THE PERF 10 DOUBLE-LINE WATERMARK FRANKLIN IS EASILY ONE OF THE FINEST IN EXISTENCE. A REMARKABLE CONDITION RARITY.
Even though this stamp is not particularly rare, experienced collectors know that it is extremely difficult to find with such perfect centering and in such pristine Mint Never-Hinged condition.
With 1993 P.F. certificate (Image)