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The ornamental design for the concert shell, substantially as shown and described. |
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FIG. 1 is a perspective view of a concert shell showing my new design.
FIG. 2 is a front elevation view thereof.
FIG. 3 is a side elevation view thereof.
FIG. 4 is a perspective view of a modified concert shell showing my new design.
FIG. 5 is a front elevation view thereof.
FIG. 6 is a side elevation view thereof.
Eade, Robert A., Quaintance, Peter V. C.
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