4 13 2009. It looks like a date: April, 13th, 2009.
Presumably you mean: IV V MMIX If so, it means: 4-5-2009
IV/IV/MMIX
In today's terms it is: XII-XIII-MMIX
In today's modern notation it is: XVII-April-MMIX or if you prefer XVII-IV-MMIX
IV-XVII-MMIX
III-XIII-MMIX
Presumably you mean: IV V MMIX If so, it means: 4-5-2009
4 = IV 30 = XXX 2009= MMIX It can be written as IV-XXX-MMIX
IV/IV/MMIX
In today's terms it is: XII-XIII-MMIX
In today's notation: VII-XIII-MMIX
In today's modern notation it is: XVII-April-MMIX or if you prefer XVII-IV-MMIX
IV-XXI-MMIX
IX/IV/MMIX
Iv/v/mmix
April 4th, 2009 would be - IV/IV/MMIX
In today's terms: I-IV-MMIX