diff --git a/src/lib/types.ts b/src/lib/types.ts
index e876429..756ff24 100644
--- a/src/lib/types.ts
+++ b/src/lib/types.ts
@@ -1422,6 +1422,30 @@ export interface StockPurchaseItem extends BaseRecord {
   };
 }
 
+// ─── Item history popover ────────────────────────────────────────────
+
+/** Per-supplier purchase history for a single item. */
+export interface ItemHistorySupplier {
+  supplier_id: string;
+  supplier_name: string;
+  last_cost: number;
+  last_bought_at: string;
+  times_bought: number;
+  last_order_id: string;
+}
+
+/** Other quotes to the same customer / other companies for the same SKU. */
+export interface ItemHistoryOtherQuote {
+  quote_id: string;
+  quote_number: string;
+  company: string;
+  customer_name: string;
+  status: string;
+  selling_price: number;
+  quoted_at: string;
+  days_ago: number;
+}
+
 /** Last time this SKU was on a fulfilled order. */
 export interface ItemHistoryLastSold {
   selling_price: number;