MP sale:

https://marketplace.tf/items/tf2/290;5;u9

April 2: 31.95 / 1.69 = 19

Other sale:

https://backpack.tf/item/7956875109

https://backpack.tf/profiles/76561197988341178#!/compare/1586131200/1586217600

https://backpack.tf/profiles/76561198104481853#!/compare/1586131200/1586217600

Sold for 14 keys

Histories of keys don't match as they come from "zhingr". However on the seller's end, the atomic spacemann comes from "zhingr" too

so seller sold the cranium for the keys visible on the buyer's end, then used those keys to buy the spacemann before the keys were scanned in their backpack.

Thanks to Jarool for the help!

Taking 14 - 19 keys.