3c Deep Violet, Bluish
(359). Lightly hinged, deep rich color on nicely blued paperVERY FINE AND CHOICE EXAMPLE OF THE 3-CENT BLUISH PAPER.
With 1990 P.F. certificate. (Image)
4c Orange Brown, Bluish
(360). Lightly hinged, rich color and sharp proof-like
impressionVERY FINE. AN OUTSTANDING EXAMPLE OF THE RARE 4-CENT BLUISH PAPER, WHICH IS ONE OF THE MOST DIFFICULT BLUISH PAPERS TO FIND IN SUCH PRISTINE CONDITION.
A review of our Levi records of Bluish Paper stamps shows that the 4c is much rarer than the 8c in well-centered condition.
With 1995 P.F. certificate (Image)
5c Blue, Bluish (361). Top
left corner margin, barest trace of hinge at bottom right along one or two
perfs visible only when cross-lighting the stamp, rich color on deeply
blued paper, perfect centering with wide and well-balanced margins, small
ms. "X" control mark at top left selvageEXTREMELY FINE GEM. ARGUABLY THE FINEST EXAMPLE OF THE 5-CENT BLUISH PAPER ISSUE IN EXISTENCE. A REMARKABLE STAMP IN TERMS OF MARGINS, COLOR, CENTERING AND GUM.
Ex Drucker. With 1978 P.F. certificate as block of four and with 2002 P.F. certificate. (Image)
5c Blue, Bluish (361).
Barely hinged, deep rich color on deeply blued paper, choice centering with
wide evenly-proportioned marginsEXTREMELY FINE. AN EXCEPTIONAL EXAMPLE OF THE RARE 5-CENT BLUISH PAPER IN THE FINEST QUALITY ATTAINABLE.
With 1989 A.P.S., 1993 and 2004 P.F. certificates (Image)
6c Red Orange, Bluish
(362). Selvage at top, barely hinged, enormous margins, Very Fine and
choice, with 1983 P.F. certificate (Image) 
8c Olive Green, Bluish
(363). Lightly hinged, deep color on deeply blued paper, exceptional
centering for this notoriously difficult stampEXTREMELY FINE GEM. THIS IS ONE OF THE FINEST EXAMPLES OF THE RARE 8-CENT BLUISH PAPER IN EXISTENCE. A SUPERB STAMP.
According to Johl (Vol. 1, page 175), the only source of the 4c and 8c Bluish stamps was the archives of the Post Office Department. Approximately 80 of each were traded for rare stamps missing from the archives.
With 2003 P.F. certificate (Image)
10c Yellow, Bluish (364).
Left sheet margin single, h.r., vivid color on deeply blued paper, very
well-centeredEXTREMELY FINE GEM EXAMPLE OF THE 6-CENT BLUISH PAPER.
The deeply blued sheet margin and excellent centering make this a very striking stamp. Ex Golin. With 1999 P.F. certificate. (Image)
10c Yellow, Bluish (364).
Lightly hinged, vibrant color on deeply blued paper, nicely balanced
marginsEXTREMELY FINE. A BEAUTIFUL EXAMPLE OF THE 10-CENT WASHINGTON ON BLUISH PAPER.
With 2001 P.F. certificate (Image)
13c Bluish Green, Bluish
(365). Mint N.H., deep rich color on bluish paperVERY FINE AND CHOICE MINT NEVER-HINGED EXAMPLE OF THE 13-CENT BLUISH PAPER.
Wurple backstamp. With 1991 and 2000 P.F. certificates. (Image)
13c Bluish Green, Bluish
(365). Block of four, lightly hinged, deep rich color on nicely blued
paper, each stamp almost perfectly centered with well-balanced
marginsEXTREMELY FINE GEM. A SUPERB LIGHTLY-HINGED BLOCK OF FOUR OF THE 13-CENT BLUISH PAPER. PROBABLY THE FINEST BLOCK IN EXISTENCE.
The use of Bluish paper was an experiment to remedy the problem of paper shrinkage. Because most Bluish Paper stamps are difficult to find in centered, lightly-hinged condition, the majority of high-quality multiples have been broken to satisfy collector demand.
With 1964 and 2001 P.F. certificate (Image)
EXTREMELY FINE MINT NEVER-HINGED 15-CENT BLUISH PAPER. A SUPERB STAMP.
With 2002 P.S.E. certificate