Sticker | Boombl4 | Katowice 2019 is the Paper autograph from the Katowice 2019 Minor Challengers Autograph Capsule, carrying Boombl4's actual signature and Valve's original designer stamp. It is a base-film autograph with full provenance and a budget-market profile, useful for display crafts or completing a Winstrike Team collection.
Sticker | Boombl4 | Katowice 2019 is the Paper autograph from the Katowice 2019 Minor Challengers Autograph Capsule, carrying Boombl4's actual signature and Valve's original designer stamp. It is a base-film autograph with full provenance and a budget-market profile, useful for display crafts or completing a Winstrike Team collection.
This is the Paper autograph variant of Sticker | Boombl4 | Katowice 2019: an autographed player sticker tied to Boombl4 and Winstrike Team from the 2019 IEM Katowice event. It was released by Valve for the Katowice 2019 Minor Challengers Autograph Capsule and carries the original designer credit from Valve.
Paper is the base film for this set and sits below premium films such as Holo, Foil, Glitter and Gold in the finish ladder. For collectors that track film rarity, Paper is the starting point of that hierarchy and reads as the standard, everyday surface compared with the set's rarer treatments.
The sticker is labeled in the budget bracket, which places it well below premium and grail tiers used by collectors. That positioning makes it a practical pick for people building themed loads or filling autograph rows without chasing higher-end variants.
This is an autograph: Boombl4's signature is applied to the sticker and links it directly to his Winstrike Team identity from the event. The full provenance tag strengthens that tie, confirming the sticker's authenticated origin rather than a community or team-only label.
It comes from the Katowice 2019 Minor Challengers Autograph Capsule, which groups this sticker with other autographs and interchangeable teammates from that release. Being capsule-originated places it among the set siblings released at the same time and under Valve's capsule rollout.
Stickers are applied to weapons in a one-way mechanic: once applied they can be scraped thinner but removing them destroys the copy. Every craft or sticker removal consumes stock, so clean, unapplied stickers are the supply that only ever shrinks.
This sticker carries a High Grade rarity, which sits below the top Contraband tier and above the common consumer grades in the sticker-grade ladder. That grading underpins collector expectations around typical drop frequency and perceived scarcity inside the set.
Paper autographs like this are frequently used for straightforward crafts where the signature is the focal point on a weapon face or sleeve. Collectors favor clear, centered placement for autographs; even on Paper, a neat craft keeps the signature readable and preserves provenance appeal to other buyers.
Released for the 2019 IEM Katowice set, this sticker belongs to the late-2010s wave of event-authenticated autographs that Valve issued through capsules. Its release timing and capsule origin tie it to that season's autograph program rather than earlier or later sticker eras.
