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Master Scale For Slide Rule

1920-1925

Pilot balloon slide rule Mk II

1940

Slide Rule Die

1955-1967

Slide Rule Impressing Die

1960

PIC Slide Rule

1950

Surveyor's Compass

1910-1915

Clinometer

1895-1905

Thornton 12-Inch Rule

1960-1965

PIC Slide Rule

1955

Slide rule stamped A.G.Thornton Ltd.

1946

Bilham humidity slide rule for tropics, in case

1940-1945

A.G. Thornton Drawing Set

1890

Ruler

1939

Electro-Plating Number Pattern

1960

Brass Impressing Dies

1960-1965

Folding rule

1885-1895

Folding Rule

1910

Thornton Drawing Instruments

1880-1890

Clinometer

1935-1940

Box Sextant

1905-1915

Slide Rule Master Instrument Scale

1958

PIC Impressing Dies

1960-1970

Thornton Ruler

1920-1930

A.G. Thornton Drawing Set

1960-1965

Two Dividing Master Scales

1960-1965

Drawing instrument set

circa 1890

Bilham humidity slide rule Mk II for temperate latitudes, MO 345/42, in case

1942

PIC Electrical Slide Rule

1960-1967

1 pair calipers, made by A.G. Thornton Ltd, Paragon Works, Manchester.

1 pair of calipers from a set of drawing instruments

1 pair of dividers from a set of drawing intruments. Made by A.G. Thornton Ltd, Paragon Works, Manchester.

1 pair of dividers from a set of drawing intruments. Made by A.G. Thornton Ltd

Two draw leveling staff made by A. G. Thornton Ltd, Manchester.

Two draw leveling staff made by A. G. Thornton Ltd

circa 1910-circa 1930

Surveying level and case, made by A. G. Thornton, Manchester.

Surveying Level

1905-1915

Improved Perry calculating slide rule, 10 inch; in case, scale of inches and fiftieths on bevel edge, special cursor of aluminium and glass with pointer attached for rapidly calculating engine diagrams, etc., cursor has broken hair line for easy reading, double faced with celluloid log-log scales along the whole length and bottom edges; printed list of constants etc., pasted at back

Perry calculating slide rule and case

1910-1911

1 pair of compasses from a set of drawing intruments. Made by A.G. Thornton Ltd, Paragon Works, Manchester.

1 pair of compasses from a set of drawing intruments

Drawing instruments in small leather case, containing 1 pair spring bow of compasses with pencil attachment, 1 pair of spring bow compasses with drawing pen attachment and 1 pair of spring bow dividers. Made by A.G. Thornton Ltd, Paragon Works, Manchester. Dimensions: 3 1/2"x3"

Drawing instruments in small leather case

Tramrail head profile recording instrument, pantographic, bronze body, by A. G. Thornton Ltd., Manchester, in fitted mahogany box.

Tramrail head profile recording instrument

Slide-rule, 10-inch, student model (P281) mark 2, made by A.G. Thornton Ltd.

Slide-rule, 10-inch, student model (P281) mark 2

1965

Slide-rule, 10-inch, comprehensive model (P221) mark 2, made by A.G. Thornton Ltd.

Slide-rule, 10-inch, comprehensive model (P221) mark 2

1965

P.I.C. slide rule by A.G. Thornton Ltd, model no. 101/PC8, with patented differential scales, in box

P.I.C. slide rule by A.G. Thornton Ltd

Thornton P.I.C. No.171/PC17 (10-inch) slide rule by A.G. Thornton Limited with cardboard case

Thornton P.I.C. No.171/PC17 slide rule

1955-1965

Transit theolodite and case, made by A. G. Thornton Ltd, Manchester.

Transit Theodolite

1915-1925

Gauge for drawing instrument leg/head measurements made by A.G. Thornton Ltd, Manchester, c.1960

Gauge for drawing instrument leg/head measurements made by A.G. Thornton Ltd

circa 1960

Leather case for drawing instruments. Made by A.G. Thornton Ltd, Paragon Works, Manchester. Dimensions: 3 1/2"x3"

Leather case for drawing instruments

Drawing Instruments, set of metal drawing instruments in black case lined with blue velvet; "Jaywess" series, made by A.G. Thornton. 7"x3 3/4"x3/4". Consists of one pair long joint compasses fitted with pencil attachment, one pair spring bow compasses with pecnil, one pair spring bow compasses with pen, one drawing pen, one drawing pen attachement for use with long joint compasses, one container for spare pencil leads, one screwdriver for adjustments.

Set of metal drawing instruments

Pair of joint compasses, marked "Thornton", belonged to T.E. Ludwig, Chief Drawghtsman at Crewe. Dimensions: 4" long

Pair of compasses

Pair of joint compasses, marked "Thornton", belonged to T.E. Ludwig, Chief Draughtsman at Crewe. Dimensions: 6 1/2" long

Pair of compasses

Thornton P.I.C. No.5200/18B (10-inch) slide rule by A.G. Thornton Limited with cardboard case

Thornton P.I.C. No.5200/18B slide rule

1950-1960