Edison Diamond Disc Official Laboratory Model Phonograph (C-250 or C-19 Chippendale Console)
Thomas A. Edison, Inc. · Antiques & Collectibles > Vintage Audio & Video
Era / Decade
Early 1920s (specifically 1919-1923); dating clues include the Chippendale-style cabinet design and the specific 'Official Laboratory Model' grill fretwork.
Material
Solid mahogany or walnut exterior cabinet with veneer panels; internal cast-iron horn assembly; steel and pot metal mechanical components; gold-plated or nickel hardware.
Condition
Fair to Poor. The cabinet shows significant surface wear and scratches. Most notably, the acoustic speaker cloth is severely punctured/torn behind the wooden fretwork. The mechanical state is unknown (needs verification of the motor and reproducer).
Demand Level
Niche. Collectors of antique phonographs are a dedicated but small group. Shipping difficulties for heavy furniture limit the market to local buyers or specialized transporters.
Resale Value
Estimated Resale Value
Low: $100 (non-working/parts) | Mid: $250 (working but rough) | High: $600 (restored/pristine condition).
Estimated Retail Value
$250.00 - $300.00 in original 1920s currency (approx. $4,000+ in inflation-adjusted value).
Comparable Sales
Similar unrestored Edison consoles typically sell for $150-$250 at local estate auctions. Fully serviced units with original records can reach $500+ on collector-specific platforms.
Description
A classic Edison Diamond Disc 'Official Laboratory Model' phonograph housed in a stately Chippendale-style upright cabinet. This floor-standing acoustic model features the iconic internal horn and a storage compartment for thick Edison Diamond Disc records. The cabinet features intricate wooden fretwork over the speaker and a lift-top lid for the turntable access.
Key Features
Historical significance of the Edison brand; high-quality acoustic reproduction technology; furniture-grade cabinetry that appeals to interior designers as well as audiophiles; unique 'Diamond Disc' playback mechanism.
Authenticity Indicators
Original Edison Laboratory metal plaque (usually located under the lid); 'Edison' signature logo on the bedplate; specific vertical-cut stylus assembly. Confidence Level: High.
Flaws to Note
Catastrophic tear in the speaker cloth (requires replacement); heavy scuffing and finish loss on the wood; potential 'pot metal' rot in the reproducer mechanism; lock mechanism may be missing key.
Selling Guide
Where to Sell
Facebook Marketplace or Craigslist (to avoid shipping); eBay (local pickup only); specialized antique radio/phonograph auctions or forums (e.g., The Talking Machine Forum).
Selling Tips
Do not attempt to wind it if the spring feels stuck, as old springs can snap dangerously. Photograph the internal mechanism and the reproducer (the 'head') clearly. Use keywords like 'Gramophone', 'Phonograph', and 'Acoustic Audio'. Targeted at 'Upcycle' buyers if mechanicals are broken.