http://www.tf2outpost.com/trade/22090473 - Sold for duped Smoking Master's Yellow Belt [1.6 with overpay]

Only sale since the last suggestion; out of the 4 that exist, 2 have never been traded, and the other two haven't been sold in months, until now.

Mini for duped Smoking Master's Yellow Belt isn't really needed, since the most recent suggestion for it included the duped ones as part of its proof (including the sole sale at 1.7):

http://www.tf2outpost.com/trade/21562503 - Sold for Stormy Storm Flipped Trilby (slightly outdated now, wasn't when sale happened) + 6 keys + sweets - ~1.7+

http://www.tf2outpost.com/trade/20408219 - Offered:

Stormy Storm Reggaelator + 5 keys - 1.7

Dead Presidents Pom-Pommed Provocateur - 2, but summer effect

So the 1.7-1.8 is good enough for the duped Smoking Master's Yellow Belt

Here's hoping this helps the other seller out at little bit. I'm still salty over the last suggestion for this. Helped make it an absolute nightmare to sell.