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Mason's borer (iron)

Mason's borer (iron)

1874
Set of cork borers, separate handle to each borer, 1910

Set of cork borers, separate handle to each borer, 1910

Cork borers sizes 2-10 in a set, c. 1946

Cork borers sizes 2-10 in a set, c. 1946

1946
Short borer for Holman 50 pounder hammer drill

Short borer for Holman 50 pounder hammer drill

Short borer for Holman 50 pounder hammer drill

Short borer for Holman 50 pounder hammer drill

Short borer for Holman 50 pounder hammer drill

Short borer for Holman 50 pounder hammer drill

Charcoal borer, for use in blowpipe analysis, inside of mahogany case, from analytical chemist’s mahogany cabinet, made by Carl Osterland, Freiberg, Sachsen, Germany, 1850

Charcoal borer, for blowpipe analysis, from analytical chemist's cabinet, by Carl Osterland, Germany, 1850

1850
Wood sample borer, "Cobra" wood sample boring instrument in black case with metal pusher and 3 glass sample tubes. Dimensions: case: 14"x5"x1", Instrument: 12 1/2"x1/2" diam.

Wood sample borer

Charcoal borer, for use in blowpipe analysis, inside of mahogany case, from analytical chemist’s mahogany cabinet, made by Carl Osterland, Freiberg, Sachsen, Germany, 1850

Charcoal borer, for blowpipe analysis, from analytical chemist's cabinet, by Carl Osterland, Germany, 1850

1850
Charcoal borer, for use in blowpipe analysis, inside of mahogany case, from analytical chemist’s mahogany cabinet, made by Carl Osterland, Freiberg, Sachsen, Germany, 1850

Charcoal borer, for blowpipe analysis, from analytical chemist's cabinet, by Carl Osterland, Germany, 1850

1850
Charcoal borer, for use in blowpipe analysis, inside of mahogany case, from analytical chemist’s mahogany cabinet, made by Carl Osterland, Freiberg, Sachsen, Germany, 1850

Charcoal borer, for blowpipe analysis, from analytical chemist's cabinet, by Carl Osterland, Germany, 1850

1850
Wood sample borer, "Cobra" wood sample boring instrument. Dimensions: 12 1/2"x1/2" diam.

Wood sample borer

Two copper borers, rectangular section, Egyptian

Two copper borers, rectangular section, Egyptian