Stanley London Antique Patina 4-Inch Brass Sextant with Leather Case Bresser this eyepiece is built to

this eyepiece is built to withstand various environmental conditions

a 30mm Tube

2 x AA Battery

Advanced Coating Technology: Lunt flat-field eyepieces boast 0

The advanced extra-low dispersion glass technology ensures not only vivid clarity but also remarkable resolution

Stanley London Antique Patina 4-Inch Brass Sextant with Leather Case Bresser this eyepiece is built toStanley London Antique Patina 4" Brass Sextant w Leather Case RCT SL AP4BS 1 This is a beautifully made reproduction of a 4 inch radius British Lifeboat Sextant. Each sextant is expertly crafted from solid brass and marked with a unique serial number. The sextant has an accurately divided German Silver scale, and a slow motion control for making small adjustments to the index arm. A powerful magnifier can be swung into position to assist in reading