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![Manual Manual](/uploads/1/2/5/3/125350301/830243409.jpg)
What do legendary Wild T2 and today’s Leica Geosystems’ manual total stations have in common? Focus on manual total stations (part 1/3). Adapter for mounting on the LEICA / WILD telescope T2, T1 and T16 the DISTOMAT DI1001, DI 1000, DI1600, DI2000, DI3S, DI3, DI4, DI5.Included 2 screws for each adapter. Separator adapter for mounting on the LEICA / WILD T2 telescope the DISTOMAT DI4, DI3S, DI3 DI5. INCLUDED 3 SCREWS.
Figure 1: 1969 Wild Heerbrugg T2E universal theodolite This Wild Heerbrugg T2 universal instrument was part of a large donation to my collection together with a theodolite, a theodolite, a level, a level, a level, a, and various accessories. Provenance The above mentioned group of instruments once was part of the set of instruments used by the field organisation TGTW of the Survey Department (Meetkundige Dienst, 'MD' in short) of Rijkswaterstaat (part of the Dutch Ministry of Infrastructure and the Environment, responsible for the design, construction, management and maintenance of the main infrastructure facilities in the Netherlands). The department was closed in the early 2000s and in 2008 the instruments were donated to my collection. Development The Wild T2 was first produced in 1926. The in my collection was the third modification of the first model. The instrument shown here was the fourth model T2 produced, which was produced between 1958 and 1970, and dates from 1969. It was the successor of the seven years earlier and predecessor of the in my collection.
Accuracy This Wild T2 universal instrument is equipped with glass circles (90mm diameter horizontal and 70mm diameter vertical) and a optical reading mechanism. The T2 does not have a compensator for the vertical index, a coincidence vial is used instead (see ). With 70mm diameter the vertical circle of this third model T2 is substantially larger than that of the, while the horizontal circle remained the same. This T2 has centesimal circles divided down to 20c (0.20gon) intervals, can be read using a micrometer directly to 2cc and estimated to at least 1cc (see and ).
The circles are illuminated by two distinctive rotating mirrors; one directly on the secondary axis and one at the base of the instrument (see and ).