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  • Artist / Maker / Culture: Carl G. Barth  
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Carl G. Barth (117)
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Gilson Slide Rule Company (1)
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Slide Rule (117)

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Barth's alpha slide rule for milling and gear cutting

Barth's alpha slide rule for milling and gear cutting

Carl G. Barth
circa 1910
Barth's alpha slide rule for milling and gear cutting

Barth's alpha slide rule for milling and gear cutting

Carl G. Barth
circa 1910
Barth's alpha slide rule for milling and gear cutting

Barth's alpha slide rule for milling and gear cutting

Carl G. Barth
circa 1910
Barth's alpha slide rule for milling and gear cutting

Barth's alpha slide rule for milling and gear cutting

Carl G. Barth
circa 1910
Barth's belt slide rule

Barth's belt slide rule

Carl G. Barth
dated 1921
Barth's circular slotter feed slide rule

Barth's circular slotter feed slide rule

Carl G. Barth
dated 1921
Barth's circular slotter feed slide rule

Barth's circular slotter feed slide rule

Carl G. Barth
dated 1921
Barth's classification slide rule for carbon steels

Barth's classification slide rule for carbon steels

Carl G. Barth
circa 1910
Barth's classification slide rule for carbon steels

Barth's classification slide rule for carbon steels

Carl G. Barth
circa 1910
Barth's classification slide rule for carbon steels

Barth's classification slide rule for carbon steels

Carl G. Barth
circa 1910
Barth's cutting speed slide rule

Barth's cutting speed slide rule

Carl G. Barth
circa 1910
Barth's cutting speed slide rule

Barth's cutting speed slide rule

Carl G. Barth
circa 1910
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