スミソニアン博物館のインスタグラム(smithsonian) - 11月25日 00時11分

You'll see a lot of these if you're hitting #BlackFriday sales today. ?

This 1914 cash register (made by the aptly named National Cash Register Company) was used in a Marshall Field & Company department store.

Department stores were slow to install cash registers as supervisors could not easily monitor cashiers, spread throughout the store, for honesty and efficiency.
Now the model is in our @国立アメリカ歴史博物館's collection.

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