format: duodecimo

When one sheet has been folded and cut to make 12 leaves; sometimes referred to as a “twelvemo” and written as 12º and 12mo

Ruban, Kratkaia letopis Malaia Rrossiia, 1777 (И5)

The 6 in the headline's 1736 and the 6 in the same date in the third line of the text both are missing the same area of print on the bottom of the number. It can't be the same piece of type, since both 6s need to be in the forme simultaneously. But perhaps the matrix used to cast the 6s in this font didn't have a deep enough strike to cast the number correctly.

Ruban, Kratkaia letopis Malyia Rossii, 1777 (π1r)

This title page spells out the book's contents in detail: "A Short Chronicle of Little Russia from 1506 to 1776, with the appearance of the present image of the local government, and with the appendix of the list of the Hetmans, the General Elders, Colonels and hierarchs; such that descriptions include indications of cities, rivers, monasteries, churches, the number of people, news about the Post [as in mail] and other necessary information."

Ruban, Kratkaia letopis Malyia Rossii, 1777 (Д2)

This page shows the distances between one postal town and another, broken into sections and totaled at the bottom of each table: from Galukhov to Pereiaslavl is a total of 255 versts. The rules are used here as vertical lines to help keep the columns of information discrete.