Glenn L. Martin Company. Detail Specification for Pan American Long Range Air Mail Flying Boat Martin Model 130. GLM Spec #17, February 23,1932.

This looks to be some sort of odd photographic reproduction from 1932, produced by GLM Co.. 11”x 8.5”, with 20pp, 2pp, and 5pp. Numerous annotations in a contemporary hand. Rare. No copies located in WorldCat. $500

It seems as though sheet 2 is missing, though a hand-written note seems to imply (?) that the contents of page 2 is included in an appendix, though I can’t determine that.

Bound in a metal-clasp heavier paper wrapper, in a Glenn L. Martin portfolio. I assume that this had a very limited distribution, thinking that this was circulated much beyond GLM Co and Pan American.

This is signed by the VP and chief engineer at GLM, Lessiter C. Milburn (who was one of the first 23 Fellows of the Institute Aeronautical Sciences, 1932, along with such headliners as Lymann Briggs, W. Diehl, Donalf Douglas, Glenn Martin, John Northrup, I. Sikorsky, T. van Karman, and others. He was later president of Balanca Aircraft Corp.)

“The Martin M-130 was a commercial flying boat designed and built in 1935 by the Glenn L. Martin Company in Baltimore, Maryland, for Pan American Airways. Three were built: the China Clipper, the Philippine Clipper and the Hawaii Clipper…Martin named them the Martin Ocean Transports, but to the public they were the “China Clippers”, a name that became a generic term for Pan Am’s large flying boats – the Martin M-130, Sikorsky S-42, and Boeing 314.”–Wikipedia

The contents of the work includes a (1) general section (pp 1-19); pg 20 is a list of appendices numbered I, II, and III, though only (2) appendix III (2pp) is bound here. There is a third section (3) “Supplement ‘A’ ”, 5pp., that is not listed as part of the introduction.