Pan Am Clipper Exhibits by Jon Krupnick
Free Aviation and Philatelic Ebooks
Explore the history of Pan American Airways, the legendary flying boats of the Romantic Clipper Era, and one of Hawaii's most fascinating airmail stamps through these beautifully illustrated digital exhibits by Jon E. Krupnick.
Jon has made these publications available online so collectors, historians, aviation enthusiasts, and curious readers can freely enjoy his research. The Pan Am editions reflect his revised and improved award-winning exhibit, presented in an easy-to-read digital format.
All three PDF ebooks are free
Choose an Ebook to Explore
Each publication is supplied as a downloadable PDF. Select the free download button beneath any title to access the complete ebook.

Pan Am Clippers Conquer the Pacific
Discover the complete, revised version of Jon E. Krupnick's award-winning exhibit, Pan Am Clippers Conquer the Pacific. This full 80-page edition presents the development and operation of Pan Am's trans-Pacific airmail routes through rare covers, historic photographs, route information, and original research. Expanded and improved beyond the exhibit featured in his 2022 book Final Flight, it offers an in-depth journey into the Romantic Clipper Era.
- The complete revised Pan Am exhibit
- Historic routes, first flights, and airmail covers
- Rare photographs, postal artifacts, and original research
- 80 illustrated pages in downloadable PDF format
Free digital download. The PDF will open or download through your browser.

Pan Am Clippers Conquer the Pacific
Explore the romance and history of Pan Am's legendary flying boats through this concise 40-page presentation of Jon E. Krupnick's acclaimed philatelic exhibit. Featuring historic routes, first-flight covers, airmail artifacts, and carefully researched stories from the golden age of the Clippers, this edition offers an engaging introduction to one of aviation history's most fascinating chapters.
- A concise introduction to the trans-Pacific Clipper story
- Historic airmail routes and first-flight material
- Illustrated exhibit pages presented for easy reading
- 40 pages in downloadable PDF format
Free digital download. The PDF will open or download through your browser.

Aloha… The 80¢ Diamond Head Stamp of 1952
Jon E. Krupnick's richly illustrated 48-page exhibit tells the remarkable story of the 1952 80¢ Diamond Head airmail stamp, created for shipping Hawaiian flowers and plants to the U.S. mainland by air parcel post. Through rare postal covers, plate blocks, production details, first-day material, and original research, the exhibit reveals the history, intended use, and unusual varieties of this distinctive Hawaiian issue.
- The history and intended use of the 80¢ Diamond Head stamp
- Plate blocks, printings, production details, and rarities
- First-day material and authentic commercial postal uses
- 48 illustrated pages in downloadable PDF format
Free digital download. The PDF will open or download through your browser.
Preserving the Romantic Clipper Era