What year is the '...4' glass car?

[Hawthorne]

...4 indicates a glass car produced in 2004. The number 4 represents the year, and the dot before the 4 indicates production in the first half of the year. The calculation formula is '7 minus the number of dots', which would be 7-3=4, so the glass was likely produced in April 2004. Below are specific details for identifying the production date of automotive glass: 1. Single row of numbers + dots: The number represents the production year, and the dots represent the month. If the dot is before the number, it indicates production in the first half of the year; if after, it's the second half. 2. Single row of numbers + dots + dots: The number represents the year, the dot closest to the number represents the quarter, and the following dot represents the month within that quarter. 3. Two rows of numbers + dots (small dots + large dots): The number similarly represents the year. The first row of dots represents the month, the second row's large dots represent 10 days, and small dots represent 1 day.

[StMalachi]

I guess you spotted that number 4 in the corner of the windshield, right? I often encounter this issue when repairing cars. The small printed numbers on auto glass usually indicate the production year. A '4' could mean 2014, 2004, or 1994, but you need to check the accompanying dots to pinpoint the exact time. If dots appear before the number, it means first half of the year; dots after indicate second half, with each dot representing one month. Just helped a friend with his old Focus - the glass had '4' followed by two dots, matching perfectly with its August 2014 production date. Remember different manufacturers use different marking systems: Fuyao prefers dots, while Saint-Gobain uses boxed numbers. When in doubt, snap a photo and ask at an auto repair shop for certainty.