5 1 500 100 50 50 50 1 1000 1 1 5 = 1764.
The inscriptions within the chapter ring are not utilized for
chronograms, however. It is apparent that Father Borghesi was required
to make a most careful selection of the texts for his inscriptions in
order that none of the phrases included any additional letters which
formed Roman numerals than would total to the date he desired to
indicate, namely, 1764. Where it was necessary, he employed an asterisk
to separate parts of texts so that each would produce the same total.
Any letter that did not form a Roman numeral, even if capitalized or
used in a larger size, did not interfere with the formation of the
chronograms.
In spite of his ingenuity in designing a text which would include only
such of the letters representing the Roman numerals which would provide
the chronograms for 1764, Father Borghesi experienced some difficulties,
particularly in place names. He accordingly changed them in order to
avoid the inclusion of letters that would have disturbed his totals.
Examples are MEGGL instead of MECHL, which had an extra C, and RVNNO
instead of RVMO, which had an extra M.