Here is a short video of the intracisternal protein organization that I have found in guinea pig (and a couple other mammals) in the alveolar type II pneumocytes using transmission electron microscopy.  It seems that in the most advantageous photographs, and with the method of preservation that was used on these tissues (glutaraldehyde – paraformaldehyde fix, with osmium tetroxide post fix, either Epon 812 or Spurr’s resin and lead and uranium staining of the thin sections) show a total of 9 bands (inclusive of side to side) a central more dense band which has on either side each, 3 thin bands.  The central band has a globular look to it, at least in the way these proteins have been fixed with this method.

Here is the video URL: