Jones and Lamson (J&L) 10X Lens for 14 Inch Optical Comparator 
$225.00
with  30 day return privilege. 

I believe this lens will work with the Models PC-14, FC-14, and TC-14. The lens glass diameter is approximately 1.5 inches. The thread diameter is approximately 2.25 inches. The tube length from the threads to the back is 3 inches. The lens is in excellent condition.

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