Came across this photo in my archives and felt like posting it again.
John A. Roosevelt's Icicle. The big one - side railer; 68+ ft; 1070 sq ft of sail. circa 1881.
This photo was pasted on the inside front cover of one of his scrapbooks. here's the cover page
The scrapbook is in the FDR Library in Hyde Park. Great iceboat materials in the library.
very little of the iceboat material has been digitized yet, understandably...