![](https://coimages.sciencemuseumgroup.org.uk/232/49/large_thumbnail_d051093.jpg)
Excell M2 Pocketphone, 1987.
1987
1987
2000-100 BCE
1987
1987
4000-2001 BCE
1987
1990-96
1987
1987
1987
2000-500
1991-1783 BCE
1959 (designed); 2001(made)
2000-1350
1987
circa 1987
1987
3000 BCE
1987
1987
1990-95
30 CE
30 CE
1795-1805
1987
1987
1987
1987
1987
1987
1987
1987
1987
1987
1987
1987
1987
1987
2000-100 BCE
2000-1001 BCE
circa 1987
1987
1987
2050-1750 BCE
2000-100 BCE
3000-1500
1987
1873 (original); 1990 (copy)
4000-30 BCE
3500-1000