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Art Sphere Inc.
Art Sphere Inc.
Transforming Lives Through The Arts
 
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keystone

Full size 450 × 675 pixels Architecture Terms – K
Hallway with tall arches that meet together at the center

Cadop, CC0 , via Wikimedia Commons

Keystone – center stone arch

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Bok Building 1901 S 9th Street, Studio #502, Philadelphia, PA 19148




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