Large Brass Dumpy Level
(Precision Engineer's Transit)
with storage and display box $335
This is a solid brass reproduction of a Dumpy Level, also known as an Engineer's Transit.
A dumpy level is an optical instrument used in surveying to transfer, measure, or set horizontal levels.
The level instrument is set up on a tripod and then accurately set to a leveled condition using the spirit level and leveling screws.
The operator looks through the eyepiece of the telescope while an assistant holds a tape measure or graduated staff vertical at the point under measurement. The instrument and staff are used to gather and/or transfer elevations.
Measurement generally starts from a benchmark with known height determined by a previous survey, or an arbitrary point with an assumed height.
Azimuth readings are taken using the internal magnetic compass.
This dumpy level stands 4 3/4 inches (12.1 cm) tall, 6 inches (15.2 cm) long,
and weighs a very solid 3 pounds 3.6 ounces (1.46 kg).
The Dumpy Level has a 5-power inverting telescope and a focusing adjustment.
The telescope has a removable brass lens cap to protect the large 1.5 inch (38 mm) diameter objective lens.
On the left side of the telescope, there is an adjustable spirit level with a protective cover.
The underside of the cover has a mirror to aid in reading the spirit level.
The base has three leveling adjustments and is threaded for a 1 1/8 inch diameter surveyor's tripod mount.
The azimuth angle can be precisely adjusted using a fine tuning control.
There is an internal magnetic compass for azimuth angles.
This Dumpy Level is fully functional, but is not certified accurate for surveying.
The quality and craftsmanship on this instrument is very impressive.
A beautiful solid hardwood box is included for storing or displaying the Dumpy Level.
The polished brass Large Dumpy Level sells for $335.
We also offer a Small Dumpy Level with Hardwood Case.