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Karl Martens, WrenVendu -
Karl Martens, Great Grey OwlVendu
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Karl Martens, Tawny Owl FlyingVendu
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Karl Martens, Short-Eared Owl
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Karl Martens, Long-Eared OwlVendu
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Karl Martens, Long-Eared Owl ChicksVendu
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Karl Martens, Nightjar Flying
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Karl Martens, Barn Owl FlyingVendu
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Karl Martens, Eagle OwlVendu
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Karl Martens, NightingaleVendu
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Karl Martens, Barn OwlVendu
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Karl Martens, Eagle Owl FlyingVendu
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Karl Martens, WoodcockVendu
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Karl Martens, WrenVendu
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Karl Martens, HedgehogVendu
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Karl Martens, Wood Mouse IVendu
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Karl Martens, Wood Mouse IIVendu
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Karl Martens, NightjarVendu
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Karl Martens, Tawny OwlVendu
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Karl Martens, Long-Eared OwlVendu
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Karl Martens, Long-Eared Owl ChicksVendu
Karl Martens: Twilight in the Woods
Past exhibition
