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Royal Ediswan 230V 15W Green Pygmy Lamp Here is as rather nice green glass pygmy lamp with a double wreath filament. There is no visible date code, but the wrapper puts it as during WW2. The cap is a bit of a mystery, I thought it might be steel, given that brass was in short supply at that time, but it isn't magnetic and I don't think it's aluminium. Anyone got any thoughts on that..? Also any factory information would be useful, thanks. Keywords: Lamps

Royal Ediswan 230V 15W Green Pygmy Lamp


Here is as rather nice green glass pygmy lamp with a double wreath filament. There is no visible date code, but the wrapper puts it as during WW2. The cap is a bit of a mystery, I thought it might be steel, given that brass was in short supply at that time, but it isn't magnetic and I don't think it's aluminium. Anyone got any thoughts on that..? Also any factory information would be useful, thanks.

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Lamp/Fixture Information
Manufacturer:Royal Ediswan
Lamp
Lamp Type:Incandescent
Filament/Radiator Type:Tungsten filament (double wreath)
Base:B22d (BC)
Shape/Finish:Pygmy, green glass
Service Life:1000 hours
Electrical
Wattage:15
Voltage:230
Physical/Production
Factory Location:Ponders End, London..?
Fabrication Date:Unknown, but during WW2
Application/Use:Indicator lamp
File information
Filename:Royal_Ediswan_230V_15W_Green_Pygmy_Lamp.jpg
Album name:Ria / Incandescent Lamps
Keywords:Lamps
Filesize:380 KiB
Date added:Mar 29, 2025
Dimensions:2885 x 1459 pixels
Displayed:4 times
URL:https://trad-lighting.net/gallery/displayimage.php?pid=717
Favorites:Add to Favorites

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wide-lite 1000   [Mar 29, 2025 at 09:38 PM]
Interesting . From the thumbnail , the lit photo kinda looks like a green arc inside the lamp .

Comment 1 to 1 of 1
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