00651cam a22001931 4500 ca 28000442 DLC 20260227111119.0 830523s1928 gw abe 000 0 eng ca 28000442 DLC DLC DLC TL506.B4 I5 1928 International Aeronautical Exhibition (1928 : Berlin, Germany) Regulations for the International Aeronautical Exhibition, Berlin, 1928, October 7th-28th. At head of title: ILA 1928 [Berlin, B. Paul, 1928?] 17 p. incl. illus., plans. fold. map. 21 cm. Aeronautics Exhibitions. 16377 16377