How to Determine a Car's Year from Its Windows?

[VonJulia]

Car windows have the year of manufacture marked on them, represented by numbers. There will be a series of small black dots either before or after these numbers, indicating the month the glass was produced. Typically, there is a code at the bottom left or right corner of the car window. The last or second-to-last row contains a number and several small black dots, which represent the production date of the glass. The number signifies the production year of the glass, representing the last digit of the year, while the small black dots indicate the production month. Some glass has the dots before the number, and some have them after. If the dots are before the number, subtract the number of dots from 7; if the dots are after the number, subtract the number of dots from 13. The result is the production month of the glass.