The first section (objective end) of the tube measures 51" long. The bars on either side of the tube are for attaching counterweights. The tube is not vented at the objective and is made of sheet steel with a brass flange that mounts the objective.
	The central part of the tube that is connected to the declination axis is 6 - 1/2"  long. The tube sections bolt to either side. The large hole accepts the field illuminator.
	The gearing as seen throught the mounting hole for the illuminator. Note the concentric beveled gears that are driven through the center of the declination axis..
	The lower part of the tube measures 36" long. The focusing tailpiece adds another 10", without the draw tube. The bars are for attaching counterweights. The right acension lock, declination slow-motion, declination lock, and right ascension slow-motion (out of the picture), are on the right side of the picture, top to bottom.
	The declination slow-motion and declination lock.  The right acension lock and slow-motion control rods are to the left and right, respectively.
	Looking down the tube, the first two of four aperature stops are visible. The first is 1/8" wide, the second is 5/8" wide,  the third is 1 - 1/4" wide, and the last, in the first tube section, is 2 -1/8"
	Looking towards the faceplate at the last aperature stop. This camera view is roughly the line of sight of the field illuminator.