text: **MODEL AY11230/AY11234**
  
  **Model AY11228**
  Vertical 
  Tube  Vertical 
  Tube 
  Diopter 
  Adjustment 
  Diopter 
  Adjustment  Eyepiece 
  Eyepiece 
  
  Prism 
  Cap 
  
  Prism 
  Cap 
  Focus 
  Knob 
  
  Magnification 
  Adjustment 
  Knob 
  
  Rotary 
  Case 
  Focus 
  Knob 
  Lens 
  Housing 
  
  Oblique 
  Illuminator 
  Lens 
  
  Tightening 
  Knob  Oblique 
  Illuminator 
  Spring 
  Clips 
  
  Spring 
  Clips 
  Stage 
  Illumination 
  Controls 
  Stage 