The B&L microscope has a three-objective nosepiece.
There are four objectives included with this instrument: All are B&L objectives: A: 2/3" NA 0.24; B: 1/6" NA 0.85; C: 1/8" NA 0.85; D: 1/12" NA 1.37. All have a mechanical tube length of 160mm.
One No 1, and two No 2 eyepieces. Optics are Huygenian.
This is the typical graduated drawtube.
Immersion oil applicator made from tortoise shell.