George Adderley would be glad to know the house he built in 1904 has withstood the test of time – with some help. The four-room bayside house is set back on the 64-acre property of Crane Point Museum and Nature Center near mile marker 50. It has undergone numerous restorations, one of which was last June. Over the course of eight weeks, the tabby walls of the oldest home in the Florida Keys outside of Key West were stripped down and rebuilt, preserving the original structure. For this, the Florida Trust for Historic Preservation on May 19 gave Crane Point Museum and Nature Center one of its Outstanding Achievement Awards for the accurate restoration using tabby. It is made of sand, lime, rock and burned sea shells.