INDIAN TELEGRAPH
early soound
the earliest photograph taken[1]
photography in phalke's journey
contd. photography in phalke's journey
history of printing in phalke's journey
Typewriters Cylinders and sound recording/reproduction 1877 gramaphone
magic lantern[2] [3] [4] Radio 1935-50 [5] [6]
For more [7]
camera cameras and projectors
railwaygrauvare printing