Information telebinocular viewers

From: "Jana Harrison" jkharr@consolidated.net

I was wondering ... the approximate value of the collection listed as:

Keystone Telebinocular Viewers.
The Keystone System of Travel. Tour of the world. 1,200 stereo cards in book shaped boxes with 2 telebinocular stereo viewers with clip on incandescent illuminator and stand. Original bill of sale and a dated 1936. Accompanying book showing the stereoview titles, 185 pages. Approximately 70 lbs.

I was on the net trying to find the value of one set of the viewers and the boxes of cards that were recently found in a library that is under my direction. If you have any info let me know. I am attaching this photo of the viewers that were found.

—Jana Harrison

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China Wall

From: "Chris Graves" caliron@att.net

Do you have the dimensions of the China Wall, between Tunnel 7 and 8? I am wanting to know its height, length, and width.

—Chris