{
    "type": "product",
    "name": "Gaumont Block-Notes Stereo",
    "url": "https://www.cameraworth.com/g/gaumont/block-notes-stereo/",
    "brand": {
        "name": "Gaumont",
        "url": "https://www.cameraworth.com/g/gaumont/"
    },
    "answer": "The Gaumont Block-Notes Stereo sells for about £88 (median of only 4 recorded sales, 1999–2023; indicative).",
    "figure": {
        "grade": "indicative",
        "grade_label": "Indicative",
        "modifiers": [],
        "n": 4,
        "median_gbp": 88,
        "middle_half_gbp": null,
        "period": [
            "1999-01-14",
            "2023-11-01"
        ],
        "last_3_years": null,
        "pools": null,
        "one_sale_moves_this": {
            "without_lowest": 115,
            "without_flagged": null,
            "without_highest": 60
        },
        "extras": {
            "median_usd": 138,
            "median_eur": 108,
            "note": "USD and EUR from each sale converted at its month’s ECB rate"
        },
        "basis": "Auction hammer prices with the buyer’s premium removed; eBay as sold"
    },
    "reason": null,
    "versions": [],
    "set_apart": [],
    "version_status": null,
    "book_guide": null,
    "sales_shown": [
        {
            "id": 21866,
            "date": "2023-11-01",
            "venue": "Flints Auctions",
            "title": "A London Stereoscopic Gaumont Block-Notes Folding Plate Camera",
            "price": 25,
            "currency": "GBP",
            "gbp": 20,
            "basis": "premium_inclusive",
            "version": null,
            "version_status": null,
            "in_typical_price": true,
            "set_apart": null,
            "flags": [],
            "source_url": null,
            "lot": "324"
        },
        {
            "id": 13930,
            "date": "2011-05-28",
            "venue": "Leitz Photographica Auction",
            "title": "Gaumont  Block-Notes Stereo",
            "price": 210,
            "currency": "EUR",
            "gbp": 184,
            "basis": "hammer",
            "version": null,
            "version_status": null,
            "in_typical_price": true,
            "set_apart": null,
            "flags": [],
            "source_url": "https://www.leitz-auction.com/en/Gaumont-Block-Notes-Stereo/AI-19-12866",
            "lot": "AI_19_12866"
        },
        {
            "id": 19639,
            "date": "2009-05-23",
            "venue": "Leitz Photographica Auction",
            "title": "Gaumont  Block-Notes Stereo",
            "price": 130,
            "currency": "EUR",
            "gbp": 115,
            "basis": "hammer",
            "version": null,
            "version_status": null,
            "in_typical_price": true,
            "set_apart": null,
            "flags": [],
            "source_url": "https://www.leitz-auction.com/en/Gaumont-Block-Notes-Stereo/AI-15-18820",
            "lot": "AI_15_18820"
        },
        {
            "id": 16202,
            "date": "1999-01-14",
            "venue": "Christie's",
            "title": "Block-Notes stereo no. 4638",
            "price": 69,
            "currency": "GBP",
            "gbp": 60,
            "basis": "premium_inclusive",
            "version": null,
            "version_status": null,
            "in_typical_price": true,
            "set_apart": null,
            "flags": [],
            "source_url": "https://www.christies.com/en/lot/lot-1418534?ldp_breadcrumb=back",
            "lot": "218"
        }
    ],
    "sales_ledger": "https://www.cameraworth.com/g/gaumont/block-notes-stereo/sales/",
    "citation": "“Gaumont Block-Notes Stereo: about £88, the median of 4 recorded sales, 1999–2023 (Indicative, method v1).” cameraworth.com, retrieved 8 October 2026. https://www.cameraworth.com/g/gaumont/block-notes-stereo/",
    "method": {
        "version": 1,
        "url": "https://www.cameraworth.com/methodology/"
    },
    "computed_at": "2026-10-08 00:10:00.968880",
    "attribution": "Data from cameraworth.com — a public register of what cameras and lenses actually sold for. Cite the page URL and the retrieval date; see /methodology/ for how each figure is made."
}