How to decode a chronogram:

Consider each single upper case letter as a Roman numeral, and add them together. For example, IX in a chronogram represents eleven rather than nine, since it decodes as I + X (one plus ten).

Chronogram in the title:

Title transcription: DoMI et patrIae VIVIt herVs, forIs et eXterIs VIXIt CLarVs

Date transcription: a. Dom. MDCCIII [1703]

Note: Title inscribed around portrait forms a chronogram for 1703

Comment on title: transcribed with small caps as lower case to preserve the chronogram (Per 0G2.3, "Where there is good reason to assume that a chronogram is being used, do not convert letters considered part of the chronogram from uppercase to lowercase, or from lowercase to uppercase")

Question on title: I wasn't sure how to punctuate the title; it looks on the piece like it's meant to be a two-line rhyme, with a break after "herVs." There's a full-stop after "herVs" on the piece; I converted it to a comma to keep the pause without having to make the "f" in "forIs" upper case.

Comment on date: although the chronogram in the title indicates the date 1703, the date also appears in ordinary Roman numerals, below the portrait. This date is transcribed in the date element.

Source: British Museum 1838,0420.154

Chronogram in the date:

Title transcription: Janssenisten en Munniken-zeef

Date transcription: [1705]

Note: Date of publication derived from chronogram: en Iste IrrItat CrIbro MonaChos DIspergens

Source: British Museum 1882,0812.427