Don has inherited Lane’s old office, and there’s a part of him there. He throws it out initially, but later it’s hanging on his wall.

There have been no jokes, not without you.
i was left with no other choice
Costume designer Janie Bryant on Lane
“The use of the color red is about him being from Great Britain. You’ll notice accents of red in Lane’s ties, vests, and cufflinks. His character is very meticulous and buttoned-up and I show those qualities through his very tailored suits and color-coordinating vests, single and double breasted.“
Don has inherited Lane’s old office, and there’s a part of him there. He throws it out initially, but later it’s hanging on his wall.

i was left with no other choice
Mission Impossible: Fallout (2018) & Mad Men “Signal 30″ (2012)