Telephony

Print and/or digital. Single use, any size, inside only. Single language only. Single territory rights for trade books; worldwide rights for academic books. Print run up to 5000. 7 years. (excludes advertising)

£154.00

Editorial (Books, magazines and newspaper) - standard

Print and/or digital. Single use, any size, inside only. Single language only. Single territory rights for trade books; worldwide rights for academic books. Print run up to 1500. 7 years. (excludes advertising)

£66.00

Professional website, social media or presentation/talk

Web display, social media, apps or blogs. Not for advertising. All languages. 1 year + archival rights

£165.00

Personal website, social media or presentation/talk

Web display, social media, apps, or blogs. Use in academic and non-commercial presentations/talks included. Not for commercial use or advertising. All languages. 5 years

£44.00

Personal products

Personal Prints, Cards, Gifts, Reference. 5 year term. Not for commercial use, not for public display, not for resale. example: For use on birthday cards sent to family members.

£22.00

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Largest available format 3504 × 3062 px 1 MB

	Dimension [pixels]	Dimension in 300dpi [mm]	File size [MB]	Online Purchase
Large	3504 × 3062 px	297 × 259 mm	1.2 MB
Medium	1024 × 895 px	87 × 76 mm	1.1 MB

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Image number

UIS5064546

Image title

Telephony

Auto-translated text View Original Source

Location

Science Museum, London, UK

Medium

object

Image description

Telephony. Telephone Answering Machines (Repondeur telephonique) Poulsen's Telegraphone, 1903. Patented in 1898 by the Danish electrical engineer and inventor Valdemar Poulsen (1869-1942), the Telegraphone was the first telephone answering machine and laid the foundations of magnetic recording. Poulsen discovered that he could record sound by speaking into a microphone attached to a magnet that was moved slowly across a thin wire. As the wire became magnetised, a trail of sound patterns was recorded. However, poor sound quality prevented the Telegraphone from achieving commercial success and Poulsen became disheartened. In the 1930s the Germans adapted his invention for military use, exchanging the wire for magnetic coated plastic tape. This simultaneously improved sound quality and enabled reuse. After World War II, the machine was adopted by the entertainment industry and experienced great popularity. ©SSPL/Science Museum

Photo credit

SSPL/UIG / Bridgeman Images

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Largest available format 3504 × 3062 px 1 MB View all formats

	Dimension [pixels]	Dimension in 300dpi [mm]	File size [MB]	Online Purchase
Large	3504 × 3062 px	297 × 259 mm	1.2 MB
Medium	1024 × 895 px	87 × 76 mm	1.1 MB

Field	Search term	Example
Asset title	title:	title:pony
Asset title and keywords	~	~pony
Asset description text	description:	description:london
Agency prefix	prfx: or $	prfx:lal or $LAL
Asset id	imageid: or #	imageid:250297 or imageid:[2500 TO 4000] or #1551
Agency name	coll:	coll:history
Medium	medium:	medium:oil
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Keywords	kw:	kw:dog
Artist name	artist: or ?	artist:monet or ?monet
Artist nationality	nat:	nat:French
Creator ID	creatorid:	creatorid:37
Location	loc: or @	loc:exeter or @exeter
Classification	class:	class:57 or #57. Use # for unclassified assets
Year	year:	year:1850 or year:[1700 TO 1800]

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