https://steamcommunity.com/market/listings/440/Unusual%20Taunt%3A%20Mourning%20Mercs%20Unusualifier

Jan 14, 33.11 keys

Jan 20, 20.56 keys

Jan 21, 20.84 keys

Jan 28, 20.15 keys

Jan 30, 24.23 keys

Feb 1, 22.80 keys

Feb 3, 16.45 keys

Feb 4, 33.74 keys (x2)

Feb 5, 37.57 keys (x2)

Feb 9, 44.16 keys

Feb 18, 38.33 keys

Feb 19, 39.89 keys

Feb 25, 23.84 keys

Feb 26, 23.83 keys

Mar 2, 23.60 keys

Mar 8, 21.03 keys

Mar 9, 21.05 keys

Mar 10, 20.84 keys

Mar 16, 22.91 keys

Mar 16, 23.53 keys

Mar 18, 22.79 keys

Mar 23, 34.24 keys

Mar 24, 34.05 keys

Mar 28, 30.66 keys

Mar 28, 19.20 keys (x2)

https://marketplace.tf/items/tf2/9258;5;uncraftable;td-31413

Feb 28, $77.78/1.69 = 46.02 keys

https://gladiator.tf/sales?item=Non-Craftable%20Unusual%20Taunt:%20Mourning%20Mercs%20Unusualifier&at=2024-03-11T19:00:03.274Z

2 @ 20 keys

1 @ 22 keys

Sales (rounded to the nearest key)

19

20

20

20

21

21

21

21

21

22

23

23

23

24

24

24

24

24

31

33

46

Classies: https://imgur.com/a/GPCn4zv

Buyers at ~18 - 19 keys, seller down to 29 keys. On SCM, lowest sellers down to ~31 - 32 keys, so being a bit more generous with the range here and excluding sales only 33 and above. To balance the range a bit, excluding 19 as well (given buyer at that value as well, and it being a less common selling point).

Taking 20 - 31 keys.