Theodolite Accesory Kit
In nearly 20 years of collecting and extensive research this is the only accessory kit that I have ever seen for a four foot screw theodolite.
I consider the set to be extremely rare.
The kit consists of a lantern, lantern holder, diagonal eyepiece, trough compass and striding bubble all complete in a dovetailed mahogany box.
The lantern and compass are very typical of the accessories in the Troughton & Simms theodolite imported by Wiesener so I believe that this set was also made by Troughton & Simms.