2021 Topps Topps Baseball 2021 Topps 1991 Topps All-Star George Brett #91AS-41

Authority: HaloVault model estimate

Exact match: George Brett · George Brett · 2021 · 2021 Topps · #91AS-41

Condition basis: raw · needs_review

Evidence: 0 verified sale(s) · 0 structured guide(s) · 0 asking reference(s) · 0 excluded.

• Market evidence · evidence · $1.84 · guide observed 2026-08-19T06:35:55.776377+00:00 · raw · Recorded identity, scarcity, and context factors

Calculation: HaloVault applied its recorded model inputs and uncertainty rules.

1. Match the printing — Used the stored card identity, variant, edition, and condition fields.
2. Apply relevant factor groups — Applied only the customer-visible factor groups listed below; proprietary weights remain in the internal audit record.
3. Set the estimate range — Expanded the midpoint according to data completeness and uncertainty.
4. Recommend a listing price — Selected a buyer-friendly asking price inside the estimate range, leaving reasonable negotiation room.

Range: The range reflects the included evidence, identity match, condition basis, freshness, overlap checks, and uncertainty.

Confidence / freshness: 14% · 2026-08-19T06:35:55.776377+00:00