Year of: 2000.

Here're a couple productions from year 2000. The Rose-gold plated was made in January of that year whereas the Street-Chrome in July. Note the distinctions between these date codes.

With reference to my 'knowing when it's made' post. I pointed out that Zippo had a unique 'combined' bottom coding as marked in this street-chrome.

Hence i came out an analysis that Zippo mfg company continued using the roman numerical numbers(only) till mid-year & started with their new 'combined' date code for the rest of the year.  Perhaps?