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Native stretcher/original stretcher

We permit ourselves the neologism “native” to designate a stretcher already in place when the painting was executed—that is, one on which the canvas used for the picture had been previously stretched. On the other hand, in the case of a painting executed on a canvas stretched or fixed to some other temporary structure, or even simply laid down on a surface, then, following execution, affixed to a stretcher by the artist or a third party, this stretcher is to be described as original if it has never been replaced in the course of time.