Lenovo Thinkpad t420s. Everything on it works great. The unit itself is clean and has been well maintained, I've taken the boot ssd out but put in a 128gb Kingston SSD that's ready for an OS and has barely been written to. The battery and charger are both Lenovo branded and are also in working order, although the release button on the battery is busted, which is shown in the pictures. Other than that one ding, a missing rubber foot on the bottom and some wear on the keyboard, there's nothing wrong with this thing cosmetically and functionally it runs great.
Screen is 1600x900 resolution, processor is an i7-2620m 2.6ghz processor, 8 gb of ram. Classic keyboard from before they switched to the chiclet style.