https://backpack.tf/item/10490833807

I wasn't able to locate any others in existence. I'd love to know if there are more.

https://backpack.tf/premium/search?item=Toy%20Soldier&quality=5&tradable=1&craftable=1&australium=-1&particle=14&killstreak_tier=0&elevated=11

Sold for $179.99 on Mannco.store:

https://i.gyazo.com/7e85d8e9d7cdbd1ff36bb3e9d4c7be4d.png

https://mannco.store/item/440-scorching-flames-strange-unusual-toy-soldier

Keys averaged $1.71 at the time of sale:

https://i.gyazo.com/fed46e0b2962fe2a585739dc8d83c3ff.png

https://mannco.store/item/440-mann-co-supply-crate-key

179.99 / 1.71 = ~105.25, rounding to 105 keys

It's in my collection now. I won't be reselling it.

I'll always welcome any counterproof, supporting proof, and constructive criticism if you've seen something I've missed.

Cheers!