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A postcard or post card is a piece of thick paper or thin cardboard, typically rectangular, intended for writing and mailing without an envelope. Non-rectangular shapes may also be used but are rare. There are novelty exceptions, such as wooden postcards, copper postcards sold in the Copper Country of the U.S. state of Michigan, and coconut "postcards" from tropical islands.

In some places, one can send a postcard for a lower fee than a letter. Stamp collectors distinguish between postcards (which require a postage stamp) and postal cards (which have the postage pre-printed on them). While a postcard is usually printed and sold by a private company, individual or organization, a postal card is issued by the relevant postal authority (often with pre-printed postage).

Production of postcards blossomed in the late 19th and early 20th centuries. As an easy and quick way for individuals to communicate, they became extremely popular. The study and collecting of postcards is termed deltiology (from Greek deltion, small writing tablet, and English -logy, the study of).

Postcard Media

10,896 media by topicpage 1 of 109
Les heures de la nuit
Everybody works but the vacant lot", Henry George. [A postcard.]
A Morning Tide, Crescent Beach Great Kills, Staten Island, N.Y.
North temple pagoda, Soochow.
Village scene--Fiji.
Birdseye view of bridges, Foochow.
Postcard advertising first productions of Spreading the News, Irish National Theatre Series
Postcard advertising first production of Spreading the News, Irish National Theatre Series
Wheel-wrights at work, north China.
Shanghai.  Native method of manufacturing cotton cloth.
River cargo, Chiang Chin, Amoy Interiour.
"Alligator Bait" - postcard to Frederick Hoeing
Sihu, Hangchow.
Sihu, Hangchow.
"The Home Stretch in Florida" - postcard to Frederick Hoeing
Old chiefs of Fiji (once cannibals).
Canton Bund and harbor looking downstream.
A merry Christmas.
Girls making mats, Fiji.
Zhenhai Tower, or Five Stories Pogoda.
Catarro and the road to Montenegro
A Fiji maid.
Beating the death drum for a cannibal feast.
Young Fijian warriors.
Native foods, taro, turtles & yangona roots.
Chinese saw mill.
Lami River, near Suva, Fiji.
Making tappa, Fiji.
Hankow view.
Aus der Champagne : Französische Motorbatterie auf der Fahrt zur Front.
Die ersten Frühlingstage in Polen : Fischfang im Karpfenteich an der russisch-polnischen Grenze.
Katholische Feldmesse und Abendmahlspendung, vor der Schlacht in Russland, hinter Korkowo.
Chinese houses near Shameen, Canton (European settlement).
Englische Royal Scots (Hochländer) auf Vorposten in den Dünen.
Unterstand des Bataillons-Stabes erhält eine wichtige telephon. Meldung zur Weitergabe an die Front.
Munitionskolonne im Westen bei der Zubereitung eines warmen Nachtmahles.
Vom Osten : Beim Früstück in einem polnischen Bauerngehöft.
"A Native Product" - postcard mailed to Frederick Hoeing, 1916
Native city, canal, and Foreign Concession, Canton.
"A Joy Ride in Florida" - postcard mailed to Frederick Hoeing, 1917
Admiral Jellicoe landing at Suva, Fiji.
Canoe racing, Fiji.
Native houseboat, Suva, Fiji.
Botanical gardens, Suva, Fiji.
Street life of Peking., Qing Dynasty
Not only for December greetings do I send...
Hotel Belleclaire, Broadway at 77th Street, New York City
The season's greetings.
Harbour of Shanghai.
Peking.  Near Tsi-hwa-Mönn.
Opium hulks in Shanghai Harbour.
Native city in Shanghai.
Peking.  Hall of classics.  Confucius-Temple.
Peilo im Confuzius Tempel.  Peking.
You is my best girl.
Life on a sampan.
Chinese child with vase.
Chinese child with fan, standing next to vase.
Chinese child holding bouquet.
The pagoda "Wu-ta-ssu".
Yoshino St., Dairen.
Peking.  View from Hata-mên.
English Bund, Shanghai.
Yamagata Street, Dairen.
Building in Dairen's Electricity Park (?)
Nantao, Shanghai.
The Post and Telegraph administration office, Dairen.
Chinese children.
Peiyushan from Toyo Bridge, Port Arthur.
A Chinese water carrier.
Chinese taking tiffin.
Chinese Fantan game.
Bird eye view of Dairen.
The Tokiwa Bridge, Dairen.
Shanghai.  English Settlement.
A high class Chinese lady with small feet.
Iwaki Street, Dairen.
Barber in the street, Shanghai., Qing Dynasty
Kodama Street, Dairen.
Honkew market, Shanghai.
Street vendors.  Pekin.
Market Road, Shanghai.
A labourer of drawing water.
Seward Road, Shanghai.
Two little maids in China.
Oku Street, Dairen.
Coolies resting, Shanghai.
Osaka Street, Dairen.
Shanghai, Nanking Road.
Hongkew Market, Shanghai.
Yang-King-Pang, Shanghai.
Foochow Road, Shanghai.
Nogi Street, Dairen.
Headquarters of South Manchuria Railway, Dalian.
Kitaoyama Street, Dairen.
Shanghai.  A Buddhist temple in the old city.
Shanghai.  A Chinese funeral.
Street in Pekin.

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