10c Blue, Special Delivery
(E1). Original gum, h.r., crisp impression, choice centering, Extremely
Fine (Image)
10c Blue, Special Delivery
(E2). Mint N.H., deep dark color on bright fresh paper, tiny backstamp
does not show thruEXTREMELY FINE. A GORGEOUS MINT NEVER-HINGED EXAMPLE OF THE SECOND SPECIAL DELIVERY ISSUE.
With 2002 P.S.E. certificate (Image)
10c Blue, Special Delivery
(E2). Mint N.H. with slightly disturbed gum, choice centering with
nicely proportioned margins, fresh color, Extremely Fine. a beautiful
stamp, with 2000 P.F. certificate, Scott Retail as hinged (Image) 
10c Ultramarine, Special
Delivery (E8). Mint N.H., sharp impression, wide margins, Very Fine and
choice, with 2003 P.F. certificate (Image)
10c Ultramarine, Special
Delivery, Large Die Proof (E12P1). 83 x 74mm, die sunk on 203 x 151mm
card with full die sinkage, with "Approved June 20, 1922 Postmaster
General" neatly printed in blue ink and signed by Hubert Work, with
blue control No. 1160099 on back, card with small thin at bottom right and
small evidence of correction where printing began, otherwise Extremely
Fine, only five known (Image)
10c Ultramarine, Registration
(F1). Right imprint, plate no. and "A" block of six, left stamps Mint
N.H., tiny hinge sliver reinforcements at right, bright color, Fine (Image)