1930
It means : 1900 30 7 Its probably a date.
1900 is written in Roman numerals as MCM.
MCM is 1900
MCM
1100
XXX is the number 30 in Roman numerals. The number 30 is represented by the Roman numeral XXX (three times X = 10).
In today's terms the Roman numerals MCM converted into Hindu-Arabic numerals are 1900.
The number 30 is XXX in Roman numerals, as each X equals 10.
The Roman numerals of XXX means the 30th modern Olympic games.
Thirty in Roman numerals is written as "XXX."
MCM-MCMXLV