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The Francis Barker range of Liquid Prismatic Compasses includes some of the finest professional compasses ever made. The Francis Barker traditional military liquid prismatic compass is currently in service with many defence forces around the world and has been for many years. Built to meet the exacting specifications demanded by military users, it is the compass that officers of the British Army have used for generations.


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Pyser-SGI Francis Barker Brass Telescopic Tripod   Price: £ Call

Key Features

  • All brass nonmagnetic construction
  • Three section click locking drawn brass tubular legs
  • Full rotating head with locking ring
  • Solid precise and lockable ball and socket
  • Extends to 1.5 metres, 0.53 metres closed
  • Sturdy and lightweight
  • Solid replaceable chrome plated brass feet

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Pyser-SGI Francis Barker Surveyors / Artillery Prismatic Compass   Price: £ Call

Key Features

  • Dry suspension or liquid filled
  • Half degree graduations
  • Accurate to ± 15 minutes
  • Large 115mm (4½ inches) diameter for precision readings
  • Solid aluminium, brass and glass construction
  • Sapphire jewel bearing
  • Tripod thread
  • Foldaway design
  • Solid protection lid
  • Internal dial lock for total protection in transit - dry suspension model only.
  • For use hand-held or on tripod (recommended tripod model Francis Barker Brass Telescopic Tripod)
  • Proven over many years in all world regions in surveying, artillery, satellite positioning, compass swinging etc.

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Pyser-SGI Francis Barker M73 Black Liquid Prismatic Compass (Degrees Model)   Price: £ Call

Key Features

  • The best hand-held military compass in the world
  • Degrees version
  • Solid reliable brass/aluminium and glass construction
  • Prism sighting system for highest accuracy
  • Liquid filled for rapid sighting
  • Full day/night use - 5 tritium lights
  • Precision sapphire bearing
  • Full MILSPEC build quality
  • NSN: 6605-99-768-3792

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Pyser-SGI Francis Barker Educational Marine Compass   Price: £ Call

Key Features

  • Ideal for navigation training.
  • 115mm (4½ inch) diameter rose.
  • 175mm (7 inch) diameter casing.
  • Large clear white face for ease of reading.
  • 360 degrees graduations and 32 cardinal point markings.
  • Top quality magnetic needle mounted on sapphire jewel bearing.
  • Casing in spun aluminium finished in black epoxy enamel.
  • Glass protection window.
  • Made in UK to ISO 9001:2000 quality standards

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Pyser-SGI Francis Barker Plotting Compass with compass points   Price: £ Call

Key Features

  • Ideal for educational and operational use
  • Injection moulded outer ring
  • Sealed in upper protective glass
  • Upper and lower pivots
  • Opaque white base with 8 cardinal points clearly marked
  • Magnetic needle with notched tail for accurate plotting
  • 20mm diameter
  • Made in UK to ISO 9001:2000 quality standards

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Pyser-SGI Francis Barker M73 Black Liquid Prismatic Compass (Mils Model)   Price: £ Call

Key Features

  • The best hand-held military compass in the world
  • Mils version
  • Solid reliable brass/aluminium and glass construction
  • Prism sighting system for highest accuracy
  • Liquid filled for rapid sighting
  • Full day/night use - 5 tritium lights
  • Precision sapphire bearing
  • Full MILSPEC build quality
  • NSN: 6605-99-960-0789

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Pyser-SGI Francis Barker M88 Green Liquid Prismatic Compass (Degrees Model)   Price: £ Call

Key Features

  • Lightweight and rugged aluminium alloy construction
  • Prism sighting system for highest accuracy
  • Liquid filled for rapid sighting.
  • Full day/night use - 5 tritium lights
  • Precision sapphire bearing
  • Full MILSPEC build quality
  • In service worldwide
  • NSN: 6605 99 500 3822

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Pyser-SGI Francis Barker NATO Survival Compass   Price: £ Call

Key Features

  • NATO Stock Number 6605 99 522 0223
  • All brass and glass construction
  • North and south seeking luminous points
  • Jewelled sapphire bearing
  • Niva tipped brass pivot

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Pyser-SGI Limited    +44 (0) 1732 864111
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