2c Panama-Pacific (398).
Mint N.H., perfectly centered, dark color and detailed impression,
Extremely Fine Gem (Image) 
5c Panama-Pacific (399).
Mint N.H., well-centered with wide margins at sides, beautiful shade,
Extremely Fine Gem (Image) 
10c Orange Yellow,
Panama-Pacific (400). Mint N.H., choice centering, brilliant color on
fresh paper, Extremely Fine Gem, with 1980 P.F. certificate (Image) 
10c Orange, Panama-Pacific
(400A). Mint N.H., intense color and proof-like impression,
well-centered with extra wide margins at top and bottom, Extremely Fine, a
huge stamp, with 1980 P.F. certificate
(Image)
10c Orange, Panama-Pacific
(400A). Mint N.H. right plate no. block of six, vivid color, right
stamps with usual tiny natural gum skips, left stamps with light vertical
natural gum wrinkleFINE-VERY FINE. AN EXTREMELY RARE MINT NEVER-HINGED PLATE BLOCK OF THE 10-CENT ORANGE PERF 12 PANAMA-PACIFIC ISSUE.
This is one of the rarest 20th Century commemorative plate blocks. (Image)
1c-10c Panama-Pacific, Perf 10
(401-404). 10c with barest trace of hinge, others Mint N.H., deep rich
colors on fresh paper, 2c light fingerprint on gum (catalogued as hinged),
Very Fine set, 2c with 1978 P.F. certificate
(Image)