Imperial Russia. The field-glass is military and hunting, tourist productions of firm to St. Petersburg, have been recommended for acquisition at own expense by misters officers. Not the left eyepiece "the OPTICIAN HIS EMPEROR, MAJESTIES" on right "In ST. PETERSBURG (a name of the manufacturer just in that place where a small dent.)"
Vogtlander is an Austrian (later German) manufacturer of cameras, lenses, and optical devices.
In perfect tune, increase about 4*. The glasses and eyepieces are in perfect condition, without cracks. Rare.