“CALDERONI ES TARSA”, vintage opera binoculars, made in Hungary, c.1900. Antique binoculars CALDERONI and companion BUDAPEST, dim. 11x7 (9cm in extensible condition) x5cm, in original leather case with brand name in gilt. Visible signs of use, but in good condition. The lenses are clean, visibility is clear, pleasant and the focus rings turns smooth.