What makes a copy Souvenir

The Souvenir Tec-9 | Brass (Field-Tested, FT) is the Souvenir copy of this skin — the same Mil-Spec Grade finish, handed out in a souvenir package at a Major rather than pulled from a case. Per Valve's description, parts of the weapon have simply been replaced with brass, so the appeal is that metal-on-black contrast rather than any painted artwork. Field-Tested spans 0.15–0.38 on the float scale — the middle grade, and usually the easiest one to find on the market.

What the stickers do to the price of the Tec-9 | Brass

Only a souvenir package opened during a Major produces one of these. Each package holds a skin from the tournament's collection, and it arrives carrying up to four stickers from one match — both teams, the MVP and the event — fixed on permanently. A Souvenir skin is never StatTrak™ — the two are mutually exclusive.

Where it comes from

The finish sets a floor and the stickers decide the rest. A copy out of a famous match, or one wearing a sticker from a player who has since retired, can sit several times above a plain copy at the same exterior; an unremarkable match leaves it near one.

FAQ

The finish comes out of The Inferno Collection, released with the Arms Deal update in August 2013, and it never had its own weapon case.

Can a Souvenir Tec-9 | Brass be StatTrak?

No. Souvenir and StatTrak™ are mutually exclusive — a copy is one or the other, never both, and neither can be added to a skin after it drops.

Can the stickers be removed from a Souvenir Tec-9 | Brass?

No. Souvenir stickers are part of the copy and cannot be scraped off, unlike stickers a player applies themselves. That is why two souvenir copies of one skin at the same exterior can be priced far apart.