green beans

Buyers and sellers

https://gyazo.com/fde6b7feea6f7bfde516f9f6dd02eefd

Sale 1

https://backpack.tf/profiles/76561198082481982#!/compare/1546128000/1546214400

Quicksold to me for 15 keys through a buy order. Obviously not usable.

Sale 2

https://backpack.tf/profiles/76561198126693824#!/compare/1546128000/1546214400

https://backpack.tf/profiles/76561198830056399#!/compare/1546128000/1546214400

I sold it 1:1 with a Cloudy Moon Stately Steel Toe. Mini for the toe: https://backpack.tf/suggestion/5c2b756e44325a0f9c0fef30 (27-30 -> 28.5=~29)

Marketplace sales

https://marketplace.tf/items/321;5;u63

One sale at 35$, keys were 1.71$. Translates to 20.47 keys, rounding down to 20.

Conclusion

We've got 20 and 29. Buyers are low enough to support both, giving us a giant range of 20-29.