Circular Time Division Diagram with Roman Numerals and Numeric Labels #1741862 (License: Personal Use)

This black-and-white illustration depicts a circular layout divided into three irregular segments by curved lines. Each segment contains a set of Roman numerals (I-XII) arranged along the perimeter and a central Arabic numeral: 17, 20, and 21-suggesting possible time intervals, astronomical divisions, or historical chronology markers. The style evokes early scientific or pedagogical diagrams from the 19th or early 20th century.

Used in educational content about timekeeping systems, historical calendars, or analog clock mechanics; serves users researching vintage scientific illustrations or teaching tools for Roman numerals and modular division.