U. S. BACK OF THE BOOK AIR MAIL Kenneth Pruess Lincoln Stamp Club

Types of Air Mail Stamps and Their Uses C = Airmail CE = Airmail Special Delivery CL = Semi-Official Issues CM = RF Overprints UC = Stamped Envelopes UXC = Postal Cards

C3 Came First Issued May 13, 1918 Paid for May 15 Service Washington-Philadelphia-New York

C3a Courtesy of Siegel Auctions The famous inverted Jenny

C2 Fee Reduced July 15 For Tri-City Service

C1 Came Last Issued Dec. 10 Fee Reduced for Tri-City Service Dec. 16

C4-6 Night Mail Service New York – San Francisco began July 1, 1924 Three Zones: New York – Chicago, Chicago – Cheyenne, Cheyenne – San Francisco. Fee was 8 cents per Zone.

Omaha, NE to Monrovia, CA 16 Cents for 2 Zones

Registered to Germany Stamp was valid for ordinary postage

Lindberg C10a Booklet Cover And Pane of 3

C11 Beacon Air Aug. 1, 1928 First Day of 5 cent Air Rate

First Flight By Lindberg Puerto Rico to South America Airport Dedication and First Flight

The Zepps C13-15 Images courtesy of Siegel Auctions

South America Flight Image courtesy of Rumsey Auctions 65 cents Each Leg, $2.60 for Round Trip

The Baby Zep Courtesy of Rumsey Auctions 42½ cents went to Zeppelin Company

Airport Dedications Red Cloud, Nebraska

CE = Air Mail Special Delivery CE1 CE2

CE2 FIRST DAY Dorothy Knapp Hand-Painted Add-On Cachet Courtesy of Siegel Auctions

CL = Semi-Official Airmail CL1 Buffalo Balloon Post June 18, 1877 Nashville – Gallatin Tennessee

Buffalo Balloon Post Courtesy of Matthew Bennett Only Known Cover

CL = Semi-Official Air Mail Vin Fiz Flyer First Transcontinental Flight copies known Only 1 On Cover Use Known CL2

Use on Post Card Courtesy of Siegel Auctions 8 Uses on Post Cards Known

CM = RF Overprints Courtesy of Rumsey Auctions Used by French Naval Personnel on Mail to US or Canada

Another Type of Handstamp Overprint Image courtesy of Rumsey Auctions

Postal Stationery UC = Stamped Envelopes Most can be obtained mint, used, or as First Day covers

UC1 UC31

Use from Canal Zone Canal Zone UC8

AIR LETTER Destination Switzerland Same price anywhere in the world UC32

Postal Stationery UXC = Postal Cards Most easily obtained mint or as First Day covers Postally used a real challenge!

UXC1 First Day

UXC2 Mint

Major Cachet Makers add Cachets to Canceled Cards UXC19

UXC25 used to Yemen

THE END Domestic Air Mail rates abolished October 11, 1975 Separate Foreign rates ended Feb. 3, But stamps for foreign delivery still have small planes and are listed as Air Mail (which is the only foreign service).