Sold:

http://www.tf2outpost.com/trade/28706684

http://forums.backpack.tf/index.php?/topic/55226-psa-unusual-price-update-request-thread/page-55#entry565371 - sold for 16 keys

Credits to A Delicious Cashew

http://backpack.tf/profiles/76561198155756928#!/compare/1486252800/1486425600 - sold with 2 keys for Miami Nights Firewall Helmet = 13 keys

http://backpack.tf/profiles/76561198323775732#!/compare/1483056000/1483660800 - sold for Miami Nights Birdcage = 14 keys

Mini's:

Miami Nights Firewall Helmet:

http://backpack.tf/profiles/76561198059628402#!/compare/1485820800/1485907200 - sold with 24 keys for Burning Flames Football Helmet = 9 keys (low)

http://backpack.tf/profiles/76561198021055079#!/compare/1484956800/1485043200 - sold for 13 keys + sweets = 15 keys

Miami Nights Birdcage:

no recent valid sales, taking current price