AI Appraisal Estimate

This philatelic item is a souvenir sheet from Luxembourg, commemorating the 50th anniversary of the 'Timbres Caritas' (Caritas Stamps) charity series, spanning the years 1924 to 1974. The sheet features a single large postage stamp with a face value of 20+10 francs. The stamp's central artwork depicts a highly detailed ivory carving of the Crucifixion, showcasing high-quality craftsmanship in its printing. The border of the stamp is ornate, featuring gothic-style lettering for the country name 'Luxembourg'. The overall sheet is off-white or light cream in color with black typography. The stamp itself is perforated within the larger sheet, which remains intact and appears to be in mint, unmounted condition, protected by a clear plastic mount. Notations at the bottom of the stamp indicate it was printed by the 'Imprimerie de l'Etat Autrichien' (Austrian State Printing House), known for high-quality intaglio and photogravure work. The condition appears excellent with no visible foxing, toning, or corner blunting, maintaining its original crisp edges and vertical orientation.

I have virtually examined this Luxembourg souvenir sheet, issued in 1974 to commemorate the 50th anniversary of the Caritas charity stamp series. The item is identified as Scott #566 (or Michel Block 13), featuring a 20f+10f semi-postal denomination depicting an ivory Crucifixion relief. Visually, the sheet appears to be in Mint Never Hinged (MNH) condition. The paper appears fresh with no evident foxing, toning, or creases, and the perforations within the block remain crisp and intact. The centering of the stamp within the sheet seems well-balanced, which is typical for modern souvenir sheets produced by the Austrian State Printing House. From a market perspective, while this is an attractive example of modern European philately, it is not rare. These commemorative sheets were issued in sufficient quantities to satisfy collector demand in the 1970s and remain readily available today. Market comparables consistently show realized prices in the single-digit range, often sold as part of larger year sets or bulk lots rather than individually. The value is primarily driven by its topical appeal (Religion/Art on Stamps) rather than scarcity. Please note that this appraisal is based solely on high-resolution imagery. To confirm the 'Mint Never Hinged' status, a physical inspection of the gum side is required to ensure there are no disturbances, hinge marks, or regumming. Additionally, I would need to verify the absence of thins or minute tears by back-lighting the stamp. Assuming the gum is original and pristine as the front suggests, the value remains modest but stable as a piece of standard modern philatelic history.