XP (kristusmonogram)

Simple Labarum.svg
The labarum is a symbol that shows the first two Greek letters of the word Christ (ΧΡΙΣΤΟΣ or Χριστός) - Chi (χ) and Rho (ρ).

Västrabo kyrka01.JPG
Författare/Upphovsman: Bernt Fransson ,Lindås, Licens: CC BY-SA 3.0
Västrabo kyrka i Växjö

Labarum of Constantine the Great.svg
Författare/Upphovsman: Den här W3C-overifiera vektorbilden skapades med Inkscape ., Licens: CC BY-SA 3.0
Labarum of Constantine I (Vexilloid of the Roman Empire). Drawn after File:As-Constantine-XR RIC vII 019.jpg; the three dots represent three "medallions" or portraits that could not be rendered in detail on the coin, c.f. File:Konstantin den stores labarum, Nordisk familjebok.png

c.f A. Macgeorge, Flags, Glasgow, 1881:

"The vexillum was a standard composed of a square piece of cloth fastened to a cross bar at the top of a spear, sometimes with a fringe all round, and sometimes fringed only below, or without a fringe, but draped at the sides, When placed over the general's tent it was a sign for marching, or for battle. The labarum of the emperors was similar in form, and frequently bore upon it a representation of the emperor, sometimes by himself and sometimes accompanied by the heads of members of his family. [...]"

Chrisme Colosseum Rome Italy.jpg
Författare/Upphovsman: Jebulon, Licens: CC0
Monogramme of Christ on a plaque of a sarcophagus, 4th-century CE, marble, Musei Vaticani, on display in a temporary exhibition at Colosseum, Rome, Italy.

Simple Labarum2.svg
Chi Rho U+2627