18 Inch Monitor Type Wye Level
Alt.-Azimuth
Berger 14 1/2" Monitor Type Dumpy Level (Tubular Bar)
Berger 15" Monitor Type Dumpy Level
Berger 18" Monitor Type Wye Level (Tubular Bar)
C.L. Berger and Sons' Precise Level
Complete Engineers' and Surveyors' Transit #1
Complete Engineers' and Surveyors' Transit #2
Cross-Section of the Berger 18 Inch Wye Level
Engineers' 18 Inch Wye Level
Engineers' Transit No. 1M
Hydrographer's 18 Inch Wye Level
No. 11C Complete Transit-Theodolite
No. 15A Alt.-Azimuth
No. 5 1/2 Engineers' and Surveyors' Transit
Plain Transit
Portable Astronomical Transit Instrument
Seven-Inch Complete Transit-Theodolite
Surveyors' Transit No. 1S
Tachymeter #1