细节
Astronomical slides
Nineteen 7 x 4 inch (approx.) wood-mounted hand-cranked mechanical astronomical slides; eighteen astronomical slides, some mounts stamped W. E. & F. Newton (37)
Nineteen 7 x 4 inch (approx.) wood-mounted hand-cranked mechanical astronomical slides; eighteen astronomical slides, some mounts stamped W. E. & F. Newton (37)