{
    "type": "product",
    "name": "Dallmeyer (J.H.) Oscillograph",
    "url": "https://www.cameraworth.com/d/dallmeyer-j-h/oscillograph/",
    "brand": {
        "name": "Dallmeyer (J.H.)",
        "url": "https://www.cameraworth.com/d/dallmeyer-j-h/"
    },
    "answer": "The Dallmeyer (J.H.) Oscillograph typically sells for £255 (median of 12 recorded sales, 2015–2025; fair evidence, wide spread).",
    "figure": {
        "grade": "fair",
        "grade_label": "Fair",
        "modifiers": [
            "wide_spread"
        ],
        "n": 12,
        "median_gbp": 255,
        "middle_half_gbp": [
            178,
            835
        ],
        "period": [
            "2015-06-13",
            "2025-03-26"
        ],
        "last_3_years": null,
        "pools": null,
        "one_sale_moves_this": null,
        "extras": {
            "median_usd": 322,
            "median_eur": 294,
            "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": "Prices vary widely; see the versions below.",
    "versions": [
        {
            "name": "51mm f/1.9",
            "url": "https://www.cameraworth.com/d/dallmeyer-j-h/oscillograph/v/51mm-f-1-9/",
            "kind": "working",
            "n": 10,
            "grade": "fair",
            "median_gbp": 350
        },
        {
            "name": "76mm f/2.8",
            "url": "https://www.cameraworth.com/d/dallmeyer-j-h/oscillograph/v/76mm-f-2-8/",
            "kind": "working",
            "n": 2,
            "grade": "sales_only",
            "median_gbp": null
        },
        {
            "name": "76mm f/3.5",
            "url": "https://www.cameraworth.com/d/dallmeyer-j-h/oscillograph/v/76mm-f-3-5/",
            "kind": "working",
            "n": 0,
            "grade": "none",
            "median_gbp": null
        }
    ],
    "set_apart": {
        "no_price": {
            "label": "No convertible price",
            "n": 1,
            "min_gbp": null,
            "max_gbp": null,
            "median_gbp": null
        }
    },
    "version_status": {
        "matched": 12,
        "pending": 0,
        "undeterminable": 0
    },
    "book_guide": null,
    "sales_shown": [
        {
            "id": 10861,
            "date": "2025-03-26",
            "venue": "Flints Auctions",
            "title": "A Dallmeyer Oscillograph Anastigmat 3\" f/2.8 Lens in Shutter",
            "price": 119,
            "currency": "GBP",
            "gbp": 95,
            "basis": "premium_inclusive",
            "version": "76mm f/2.8",
            "version_status": "matched",
            "in_typical_price": true,
            "set_apart": null,
            "flags": [],
            "source_url": null,
            "lot": "478"
        },
        {
            "id": 20404,
            "date": "2024-11-21",
            "venue": "Flints Auctions",
            "title": "A J. H. Dallmeyer Oscillograph f/1.9 51mm Lens",
            "price": 238,
            "currency": "GBP",
            "gbp": 190,
            "basis": "premium_inclusive",
            "version": "51mm f/1.9",
            "version_status": "matched",
            "in_typical_price": true,
            "set_apart": null,
            "flags": [],
            "source_url": null,
            "lot": "305"
        },
        {
            "id": 11664,
            "date": "2024-06-04",
            "venue": "Flints Auctions",
            "title": "A Dallmeyer Oscillograph f/1.9 51mm Lens",
            "price": 200,
            "currency": "GBP",
            "gbp": 160,
            "basis": "premium_inclusive",
            "version": "51mm f/1.9",
            "version_status": "matched",
            "in_typical_price": true,
            "set_apart": null,
            "flags": [],
            "source_url": null,
            "lot": "735"
        },
        {
            "id": 9796,
            "date": "2024-05-21",
            "venue": "Flints Auctions",
            "title": "A J.H. Dallmeyer f/1.9 3\" Lens",
            "price": 1625,
            "currency": "GBP",
            "gbp": 1300,
            "basis": "premium_inclusive",
            "version": "51mm f/1.9",
            "version_status": "matched",
            "in_typical_price": true,
            "set_apart": null,
            "flags": [
                "title_miss"
            ],
            "source_url": null,
            "lot": "255"
        },
        {
            "id": 5616,
            "date": "2024-05-21",
            "venue": "Flints Auctions",
            "title": "A J. H. Dallmeyer f/1.9 2\" Lens",
            "price": 850,
            "currency": "GBP",
            "gbp": 680,
            "basis": "premium_inclusive",
            "version": "51mm f/1.9",
            "version_status": "matched",
            "in_typical_price": true,
            "set_apart": null,
            "flags": [
                "title_miss"
            ],
            "source_url": null,
            "lot": "253"
        }
    ],
    "sales_ledger": "https://www.cameraworth.com/d/dallmeyer-j-h/oscillograph/sales/",
    "citation": "“Dallmeyer (J.H.) Oscillograph: typical sale price £255, the median of 12 recorded sales, 2015–2025, middle half £178–£835 (Fair, method v1).” cameraworth.com, retrieved 8 October 2026. https://www.cameraworth.com/d/dallmeyer-j-h/oscillograph/",
    "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."
}