スミソニアン博物館のインスタグラム(smithsonian) - 4月16日 22時16分

Happy #Easter! This early 20th-century postcard is one of more than 3,000 real photo postcards in our @国立アメリカ歴史博物館​'s Photographic History Collection.

Real photo postcards, made on thick photo paper with the postcard info pre-printed on the back, were popular from around 1900 to World War I.

In 1907, postal regulations changed to allow senders to put messages AND addresses on the back—before, only addresses went there. This kept the front free from writing and the image unmarked.

[BIHAKUEN]UVシールド(UVShield)

>> 飲む日焼け止め！「UVシールド」を購入する