"Brass Opera Spyglass 8.6 Cm"
A fully functional opera spyglass. There are signs of wear on the brass varnish and slight dents on the rim of the eyepiece and front lens. To the naked eye, the glass lenses show no signs of deterioration. Under lamplight, fog and stains are visible on the front and rear elements, with little or no impact on visibility. 
Le Magazine de PROANTIC
TRÉSORS Magazine
Rivista Artiquariato