LARGE KPM PLAQUE
Updated September 4, 2026
| Lot number | 0245 |
| Estimate | $1,500 - $2,500 |
| Opening bid | $375 |
| Auction | Helsley Collection of Posters & Antiques |
| Date | September 17, 2026 at 5:00 PM EDT |
| Auction house | Richard Opfer Auctioneering, Inc. |
| Location | Timonium, Maryland |
"Queen Louise of Prussia" - painted on porcelain, signed Keller lower right, lightly stamped on reverse with a scepter and KPM, frame has chips and losses, normal wear, VG
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