Instrument	:	Theodolite (cercle d'alignement)
Manufacturer	:	Société des Lunetieres
Country of origin	:	France
Manufacturing year	:	April 1869

I've obtained this theodolite on a trip to Egypt in 1994. The instrument is of French origin and was used for simple measurements, probably in construction works. As it lacks a vertical scale it might be better to call it a cercle d'alignement (alignment circle)[GM].

The instrument was manufactured by the "Société des Lunetiers" in its manufacturing plant called "La Compasserie".
The vernier reads down to 1/30th of half a degree (1 arcminutes). The telscope can be transited in one direction only by turning the telescope with the objective downwards. The ocular side of the telescope is too long to be transited. The instrument has a scope mounted at a 90 degree angle with the telescope for setting out 90 degree angles in an easy way.

In overal design the instruments looks quite similar like the mid 19th century Egault level by Secrétan à Paris in my collection.

[GM]: Géomusée: Le musée des géomètres-experts de la Région Rhône-Alpes en France.