ROTTERDAM -- COLLECTION of 27 envelopes containing postcards of Rotterdam. (c. 1920-80). Each envelope contains 8-10 (photo) postcards, partly leporello bound. c. 94 x 145 mm. Or. printed envelopes. -- ROTTERDAM. In tijden van oorlogsgevaar. 10 briefkaarten met verschillende stadsgezichten in de Augustusmaand 1914. Serie I-III. (1914). 3 booklets w. each 10 cards. 8°-obl. Owrps. (Spines sl. dam.). -- (30).