Postcard HU-100739

1/A LB model Ericsson telephone set made for Austrian Emperor and Hungarian King Franz Josef I (1830-1916) from 1915
1/B LB I wall-mounted wooden case telephone set from 1908
2 7A1 telephone exchange test desk from 1928

Telephony Museum, Budapest, Úri street 49, Hungary
http://www.postamuzeum.hu/en/muzeumok/3/telefonia-muzeum-budapest