Resubmitted the suggestion due to a cash sale I missed originally, thanks to Headshotdoge and ツ JoXu ツ for the heads up!

SALE 1: March 5, 2018, sold for 40 keys pure:

https://i.imgur.com/0cHPMd6.png

https://i.imgur.com/Xvg9h7f.png

https://backpack.tf/profiles/76561198142244035#!/compare/1520121600/1520208000

SALE 2: December 14, 2017, sold for $119.99:

https://marketplace.tf/items/30589;5;u18

Keys were on average $1.93 during the time of sale on marketplace.tf:

http://manicbot.me/keyprice.txt

$119.99/$1.93 = around 62 keys, however I'll round it down to 60 to be on the safe side due to key price uncertainty and B/O uncertainty.

From the backpack.tf Unusual Suggestion Rules (https://forums.backpack.tf/topic/6033-rules-for-unusual-price-suggestions/):

"Sales older than 2 months old are not valid proof; this does not mean that they are not useful. Feel free to include them to provide supplemental proof. Just

don't rely on them to set your range."

"Exceptions: For VERY RARE HATS, if there have only been 1-2 sales in the last 3 months, a trade up to 3 months old is okay to use as proof to establish more

data points. Keep in mind, new sales should take precedence over older ones. "

Statement on the matter from our very own Fish-Related Crimes:

"For very common unusuals that are traded very often, sales older than 2 months shouldn't be used. Your case falls under the exception; the OMF is a rare hat (1:3 in existence, can no longer be unboxed)."

Which means that the cash sale can be used, since it happened under 3 months ago.

On a side note, there is one currently listed on OPskins for $129.00, however that will not be taken into account in the suggestion:

https://opsk.in/i/54mhnc