Lot Essay
A didactic lens to demonstrate the principle of longitudinal spherical aberration.
.jpg?w=1)
ENGLISH, CIRCA 1860
Details
A 4-inch Crown Glass Bullseye lens
English, circa 1860
the green-tinted planoconvex lens supported in cast iron stand
12½in. (31cm.) high
English, circa 1860
the green-tinted planoconvex lens supported in cast iron stand
12½in. (31cm.) high
If you wish to view the condition report of this lot, please sign in to your account.