Philately. [COLLECTIONS] selection of 45 airmail letters, URUGUAY, CHILE, BOLIVIE, VENEZUELA, EKVADOR, nice frankings, uprated frankotypes, US and German censorship, rarer simple franking Uruguay Mi.524 and Mi.575, favourite issue 1929 and issue Constitution USA 1938; various quality (Image 1) (Image 2) (Image 3) (Image 4) (Image)