Navitar 0.5x Microscope Camera Adapter 1-60439 1-6010 1-60135

  

Appears to be 2 0.5x adapters. The top adapter is labeled 0.5x Adapter 1-60439 with a C-mount labeled 1-6010. The bottom adapter with the rubber grip focus is labeled 1-60135. The lens on the bottom is labeled 0.5x 1-60110.

Lenses are in good condition.