![](https://coimages.sciencemuseumgroup.org.uk/58/388/large_thumbnail_e2013_172_1__0002_.jpg)
'Phones on the Move' discussion document, 1989
1989
1989
2000-100 BCE
1988
1989
1989
1989
1989
1988
1988
1988
1990-96
1988
1988
4000-2001 BCE
1989
1989
2000-500
1988
1988
1988
1988
1988
1989
1988
1989
1989
1989
1959 (designed); 2001(made)
1989
1989
1989
1989
1989
1989
1989
1989
1989
1989
1989
1989
1989
1989
1989
1989
1989
1988
1988
1988
1988
1988