Classical Pure Copper Perpetual Calendar Vintage High Quality

Can someone help me date this perpetual flip calendar? : r/vintage

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Brass Perpetual Calendar

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Brass Perpetual Calendar

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Mark the passage of days with elegance using our rotating perpetual calendar, a blend of functionality and design finesse. Encased in a sturdy metal

Rotating Perpetual Calendar - Desktop Decor - Metal Frame - Solid Wood Base from Apollo Box

Patek Philippe Perpetual Calendar 5136G Watch

Rotatable perpetual calendar is an amazing choice for your decor, it is smooth to spin and perfectly fixes at every date, month and day. Rotatable

8.5 Inch Perpetual Calendar Wooden Home and Office Decor -Vintage Wooden Disc Perpetual Desk Calendar Brown

Breguet Introduces A New Pair Of Classique Quantième Perpétuel