I'll be happy to answer any question: feel free to ask.
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This is a superb antique agate masonic seal.
With the "horned hand" who protects from the Evil eye.
Dimensions: 6,5 x 2,5 cm
seal: 2,1 x 2 cm
Period: 1850 - 1880
PERFECT CONDITION
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Here is a converter inches / cm to help you with the dimensions: