{
    "schema_version": "1.0",
    "source": "Universal Philatelic Auctions Catalogue",
    "record": {
        "catalogue": "UPA103",
        "auction_id": 103,
        "lot_number": 10290,
        "country_area": "Great Britain - QEII (decimal)",
        "subheading": "",
        "date": "1980",
        "sg_reference": "1124a",
        "description": "QEII 1980 London Landmarks 17½p. Kensington Palace ERROR, MISSING SILVER Queen's head … previously supplied by SG, described by SG retail card accompanying (price £1,500=) as scarce, Pierron (errors specialised catalogue) records only 30 known examples. Substantially under-catalogued (?). Gibbons Concise (2026) notes: No. 1124a (missing silver) shows the Queen's head in pale greenish yellow, this colour being printed beneath the silver for technical reasons. (1v. + normal + SG Retail card)",
        "classification": "UM",
        "size": "Medium",
        "plate": "32",
        "sg_catalogue_value_gbp": 450,
        "upa_estimate_gbp": 400,
        "image_url": "https://www.upastampauctions.co.uk/contents/en-uk/upa103/10290.jpg",
        "canonical_url": "https://catalogue.upastampauctions.co.uk/lot/103/10290/",
        "json_url": "https://catalogue.upastampauctions.co.uk/lot/103/10290.json",
        "current_catalogue": true,
        "last_updated": "2026-10-02T15:47:51+00:00",
        "transaction": {
            "label": "View / bid",
            "url": "https://www.upastampauctions.co.uk/contents/en-uk/UPA103-AllLots.html"
        }
    }
}