Stellafane 2008 - Al-Paslow
Here is a ribbed telescope mirror blank. Sometimes referred to as a "Honey  Comb" style blank. The structure of honey combed rib work makes a very strong blank weighing less than a solid mirror blank of the same diameter and thickness.

Here is a ribbed telescope mirror blank. Sometimes referred to as a "Honey Comb" style blank. The structure of honey combed rib work makes a very strong blank weighing less than a solid mirror blank of the same diameter and thickness.

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