General Information

Serial #

N/A

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

CARBON FILAMENT/ GLASS BULB & STEM/ CARBON PASTE FILAMENT CONNECTIONS/ METAL (BRASS?) BASE/ FIBER STEM SEPARATOR/ PAPER STEM INSERT/ PLATINUM LEADS THROUGH SEAL

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

17.0 cm

Width

7.9 cm

Height

N/A

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Lighting Technology

Category

Lamp bulbs

Sub-Category

N/A

Manufacturer

AKA

General Electric

Country

Unknown

State/Province

Unknown

City

Unknown

Context

Country

Unknown

State/Province

Unknown

Period

Unknown

Canada

Unknown

Function

LIGHTING/ SPECIAL/ SERIES

Technical

GEM IS STRONG & SIMPLE FILAMENT WITH ADVANTAGES OVER THENERNST & OSMIUM LAMPS, EASIER TO PRODUCE, DURABLE, LOW COST/ FILAMENT PRODUCED IN NEW TYPE OF ELECTRIC RESISTANCE FURNACE USING TEMP OF 3500 C/ WITH ITS RISING TEMPERATURE COEFFICIENCY GEM COULD STAND VOLTAGE VARIATIONSBETTER THAN ORDINARY CARBON LAMPS

Area Notes

Unknown

Details

Markings

BLACK & WHITE OVAL PAPER STICKER ON BASE READS: '30CP EDISON GEM SERIES AMP'/ HANDWRITTEN IN INK, VERY FADED, ON SAME STICKER ABOVE 'AMPS' IS: '7.5'/ PAPER STEM INSERT WITH PRINTING ON ONE SIDE ONLY READS: 'JUNE 2-19 [?] N.P.39[?]'/ PAPER STEM INSERT WITH PRINTING ON BOTH SIDES READS: 'THE MANUFACTURER OF [THIS LAMP] IS LICENSED [UNDER] PATENTS NOTED ON OTHERSIDE/ REISSUE OCT 10 05 [12,393] MAR 20 94 516,800 APR 16 95 537,[?] APR 16 95 537,[?] APR 28 03 726,[?] AND OTHERS NP5036'/ HANDWRITTEN IN BLUE INK ON STEM IS: '32 75'

Missing

N/A

Finish

CLEAR GLASS BULB & STEM/ TWO GLASS EXTENSIONS FROM WHICH FILAMENT EMERGES ARE DARKENED FROM USE/ MOGUL BASE IS BRASS COLOURED WITH A BLACK CONTACT RING/ FIBER LEADS SEPARATOR IS GREY/BROWN IN COLOUR/ OVAL BLACK & WHITE STICKER ON BULB/ 2 OVAL PAPER STEM INSERTS

Decoration

N/A