Theres been 3 other sales for less.

http://backpack.tf/profiles/76561198002757046#!/compare/1492387200/1492473600 Sold for 28 Pure

Rubi bought it for 24 keys 2 ref.

And Id assume the OPSkins sale was for around that much as well.

smg is outdated and requires a mini

That imgur link doesn't work anymore. Also I think the seller counted it as overpay so it seems a bit off to price it to the overpay value.

It resold with minor sweets for a GBH Panama (outdated at 29, no valid sales)

http://backpack.tf/profiles/76561198137298746#!/compare/1493769600/1493856000

http://backpack.tf/profiles/76561198154624508#!/compare/1493769600/1493856000

http://imgur.com/a/e6z6l ----- The Bloke's was relisted for ~33 keys, currently on Marketplace.

Link for the first sale: Slumber Swagman (28) + Blue Mew SMG (mini at 15)

http://backpack.tf/profiles/76561198074924284#!/compare/1492905600/1492992000

The SMG was bought for stuff that should be around ~15

http://backpack.tf/profiles/76561198024694313#!/compare/1492646400/1492732800

http://backpack.tf/profiles/76561198154624508#!/compare/1492646400/1492732800

So there are sales for ~24 (qs), 28 (qs), <33 and 43. We will need to wait for the Panama (or the Bucket) to resell and see if the sale for 43 is an outlier or not. Doesn't feel right to go with 43 flat when there are 3 other lower sales. Closing this in the meantime