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L&C Hardtmuth, Black Chalk 111
Courtesy
Russell Erwin
colection

Black Chalk Points No. 111

L&C Hardtmuth, Vienna

lead type
lead size
available degrees
package quantity
package composition
production date
origin
colored “black chalk”
~3 mm
2, 3, 4
6
paperboard
circa 1880
Austria
 
see also L&C Hardtmuth Everpointed Artitst’s Black Chalk Pencil
F. Weber Catalog & Co. catalog, c1890s, p 116
 
reverse  

L&C Hardtmuth 2601 Black Chalk Refills

L&C Hardtmuth, Czechoslovakia

lead type
lead size
available degrees/colors
package quantity
package composition
production date
origin
black chalk (carbon)
3 mm
5: 1, 2, 3, 4, 5
6
paper box
(1920s-1930s)
Germany
see also L&C Hardtmuth 39B 3 mm sketching leadholder
Koh-I-Noor Materials Catalog, 1937, p 5
Koh-I-Noor Rapidograph, Inc. catalog, 1980, p 74
The number 2601 leads were later known as "Black Carbon Leads," as shown in the 1937 Koh-I-Noor Materials Catalog.