Bonus Ducks.

http://backpack.tf/item/3318601278

Sale 1) Sold for 110 Keys + Duped Burning Flames Liquidator's Lid (93 Keys) + Purple Energy Mirror (36 Keys) + Cool Field-Tested Airwolf Knife (33 Keys)

http://backpack.tf/profiles/76561198061376237#!/compare/1487980800/1488067200

110 + 93 + 36 + 33 = 272 Keys

Lid Mini

http://backpack.tf/profiles/76561198175249965#!/compare/1485388800/1485475200 - Sold for a D@D Wet Works + Miami Nights Merryweather (~86 Keys)

http://backpack.tf/profiles/76561198125329673#!/compare/1485561600/1485734400 - Sold for a Time Warp Scotsman's Stove Pipe + 14 Keys (~90 Keys)

http://backpack.tf/profiles/76561198036027738#!/compare/1488067200/1488153600 - Sold for a Cloud 9 Anger + ~30 Keys of Aussies + Nuts Pencil + 4 Keys (~100 Keys)

Averaging to 93 Keys.

Mirror Mini

http://backpack.tf/profiles/76561198061376237#!/compare/1489795200/1489881600 - Sold for 36 Keys

Knife Mini

http://backpack.tf/profiles/76561198088745138#!/compare/1484092800/1484179200 - Sold for 33 Keys

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http://backpack.tf/item/3652114846

Sale 2) Sold for a Hearts Patriot Peak (179.5 Keys) + Overclocked Hetman's (27 Keys) + Spectral Swirl Deep Fried (20 Keys) + ~3 Keys of Items

http://backpack.tf/profiles/76561198074262630#!/compare/1484611200/1484697600

There is no Mini available on the Hetman's.

179.5 + 27 + 20 + 3 = 229.5, which rounds to 230 Keys

Deep Fried

http://imgur.com/a/KFRoh - Taking 20 Keys because 17 and 18.5 are young.

Sale 3) Sold + Abduction Universal Translator for a Morning Glory Law

http://backpack.tf/profiles/76561198073796186#!/compare/1487548800/1487721600

Supports the high end.

Sale 4) Sold for a Duped Burning Milkman + GBH Conno + Bubbling Boxcar + Hot MW Forest Fire Flame Thrower + 5 Keys

http://backpack.tf/profiles/76561198016070169#!/compare/1490054400/1490140800

Supports the low end.