Where can I locate the adjustment of status date on my green card? (I-90)

According to the USCIS, where you find this date depends on which version of the green card you currently have: First Step: Look at the front of your card – the side with your photo. • If your card is titled ‘‘PERMENANT RESIDENT CARD" then: You can find the date you became a permanent resident by looking for the date next to "Resident Since" on the front of your card. • If your card is titled "RESIDENT ALIEN," it is PINK then: On the back you will see a line of printed letters and numbers at the bottom of the colored part of your card. The third set of numbers from the left has six digits. This is when you became a permanent resident, shown as year / month / day. • If your card is titled "RESIDENT" and it is WHITE, then: On the back you will see three lines of printed letters and numbers, with small legends in light brown. Look at the bottom line. The first entry on the left is labeled “ADM/ADJ DATE’. This is the date you became a permanent resident. • There are a number of older versions of the card. Most of these are no longer valid. If you have not replaced your card, it should show the date you became a permanent resident typed or stamped at the bottom under ‘month, day and year of entry. CITATION: Page 103; http://www.uscis.gov/sites/default/files/USCIS/About%20Us/Electronic%20Reading%20Room/Customer%20Service%20Reference%20Guide/Permanent-Residents4-3.pdf