Vintage Arithmetic Calculator Abacus Metal Mechanical Device USSR Soviet A

Description

Hello dear customers. I present to you:
Vintage Arithmetic Calculator Abacus Metal Mechanical Device USSR Soviet A.
Accounts (Russian accounts) - a simple mechanical device (counting board with bones) for performing arithmetic calculations, according to one version, they come from the Chinese counting device Xuanpan, according to another they are of Russian origin.
They are a frame having a certain number of knitting needles; knuckles are strung on them, which are usually 10 pieces. Accounts are one of the earliest computing devices and, until the end of the 20th century, were widely used in trade and accounting until they were replaced by calculators.
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Delivery by airmail 14 - 30 days. You can track the parcel by number.
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Please pay attention to the fact that not all countries have the ability to track the parcel number. For my part, I guarantee visibility of the track numbers within the country (Ukraine). Postal service is Ukrposhta. Likewise, there may be delays in time, which are influenced solely by postal services. For their work, please do not blame me.
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