{
    "schema_version": "1.0",
    "source": "Universal Philatelic Auctions Catalogue",
    "record": {
        "catalogue": "UPA103",
        "auction_id": 103,
        "lot_number": 10439,
        "country_area": "Great Britain - Officials",
        "subheading": "INLAND REVENUE",
        "date": "1884-88",
        "sg_reference": "O11",
        "description": "wmk Crowns £1 brown-lilac, DD, ovptd SPECIMENS Type 11, well centred, fine unused no gum. RARE (UPA cert 2026).",
        "classification": "S",
        "size": "Small",
        "plate": "32",
        "sg_catalogue_value_gbp": 5000,
        "upa_estimate_gbp": 1450,
        "image_url": "https://www.upastampauctions.co.uk/contents/en-uk/upa103/10439.jpg",
        "canonical_url": "https://catalogue.upastampauctions.co.uk/lot/103/10439/",
        "json_url": "https://catalogue.upastampauctions.co.uk/lot/103/10439.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"
        }
    }
}