Telescopia

• POLISHING

  STEP 4

• PITCH LAP PROBLEMS

  PITCH LAP PROBLEMS, PRECAUTIONS, MISTAKES, AND MISFORTUNES

• POURING THE PITCH LAP

  STEP 3

• GRINDING PROBLEMS

  GRINDING PROBLEMS, PRECAUTIONS, MISTAKES, AND MISFORTUNES

• FINE GRINDING THE MIRROR

  STEP 2

• ROUGH GRINDING THE MIRROR

  STEP 1