Third issue. Trial.
Soon after the occupation of Yekaterinodar and the Kuban Region by the troops of the Volunteer Army in August 1918, the Postal and Telegraph Department of the Interior Ministry of the Kuban Regional Government drew attention to the need to revalue the stocks of postage stamps at its disposal. Between 1918 and 1920, three issues of postage stamps were released.
The second issue, produced in 1919, consisted of a typographic overprint on Russian postage stamps of the 17th and 21st issues and on savings stamps, in black ink: in one line, the value figure and the letter "k", or in two lines, the value figure and the word "ruble" ("rubles").
A significant number of provisionals is associated with the Civil War of 1918-1922. At that time, there was no stable central authority across most of the country; many regions became independent, and due to devastation and war there was substantial inflation. Frequent changes in rates and the inability to supply the postal network with stamps of the required denominations led to periodic revaluations of existing stocks in accordance with instructions from the People's Commissariat of Posts and Telegraphs of the RSFSR, which did not provide for any overprints. However, in some places certain post offices still applied overprints to the revalued stamps being sold or simply wrote on them by hand. All such stamps are characterized by an extremely simple overprinting technique.
In the Russian Empire, savings stamps had been used since 1890.
On January 1, 1900, the third issue of Russian savings stamps was released. These were savings-purpose stamps of three denominations: 1, 5, and 10 kopecks.
The stamps were intended to be affixed to special savings forms issued free of charge at savings banks. The forms were designed to be filled with stamps of a single denomination. Once filled, the form was submitted to a savings bank and the corresponding amount was credited to the depositor's account. The stamps affixed to the card were cancelled, most often by applying a roller cancel with intersecting lines. Cancelled cards were destroyed after the установленный period. The introduction of such stamps gave low-income people the opportunity to save without visiting the bank and to buy stamps at any time and in different places.
In 1915, the use of savings stamps for their intended purpose was discontinued.
In 1918, due to a shortage of low-denomination postage stamps and the complete прекращение of deposits in savings banks because of the outbreak of the Civil War, savings stamps denominated 1, 5, and 10 kopecks began to be used as postage stamps. The circulation of these stamps soon ceased by itself, since, as a result of the rapid падение of the value of paper money, the postal rate kept rising, and low-denomination postage stamps fell out of use.
This continued until March 1920, when, to pay for postal items, due to the ongoing падение of the value of money, stamps almost exclusively of ruble denominations were needed.