File:Chelsea Piers, NYC, 1921 or earlier (Postcard).jpg

Summary
Chelsea Piers were built in 1910, so the image dates from after 1910. The website https://www.cardcow.com/495278/chelsea-piers-new-york-city/ shows a copy of the same card that was postmarked and sent in 1921, meaning that the image was published sometime between 1910 and 1921.
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