On March 23, 1787, Williams deeded to Joseph Helyer, a blockmaker, the store and land under same, and half the wharfage properly belonging to Lot No. 1. On October 20 of the same year he sold to Brown a part or share of No. 7 Long Wharf, and on March 24, 1788, he purchased land with a wooden store at State Street and Long Wharf from Benjamin Brown. On June 26 he bought the land and store of Joseph Helyer on the north side of Long Wharf. [Illustration: Figure 48.--Advertisement of William Williams in _The Boston Gazette_, March 12, 1770. Photo courtesy Harvard University Library.] Williams engaged in only two more transactions before his death. On March 28, 1790, he mortgaged to Joseph Greene, a merchant, the land with wooden store at the head of Long Wharf on the northeast side of State Street; this mortgage was cancelled on May 29, 1793. On October 1, 1791, he deeded to Benjamin Brown a one-half share or 1/48th of all the dockage and wharfage of Long Wharf that appertained to one-half of Lot No. 1, which he had previously purchased from Welles as noted, as well as 1/48th of the proprietor's purchase of Gordon's lands and buildings adjoining the Wharf. Williams died on January 15, 1792, at age 44. The administrator of his estate was a merchant named Abraham Quincy. By order of the Supreme Court, in order to settle his estate, Williams' store building at No. 1 Long Wharf was ordered sold at public auction. Although on the site of the Crown Coffee House, it was a new building erected in 1780 after the Coffee House had burned. The purchaser appears to have been John Osborn, a merchant, because on May 10, 1793, Quincy, Williams' administrator, deeded to Osborn the land with wooden store at Long Wharf on State Street.[102] The only instrument made by Williams which appears to have survived is a Davis backstaff (fig. 49) marked "By Wm. Williams, King Street, Boston, for Malachi Allen, 1768"; this instrument is now in the collection of the Peabody Museum in Salem, Massachusetts. It is to be noted from this inscription that this instrument was an early example of Williams' work, produced at the age of 20, prior to the opening of his shop at the Crown Coffee House. In 1770, when Williams opened his shop, the carved sign of "The Little Admiral" (fig. 37) was installed in front of the Crown Coffee House, and Williams' establishment was thereafter designated by this symbol.[103] In his shop at No. 1 Long Wharf, Williams exercised his crafts of instrument-and clockmaking, and he made and sold a large assortment of instruments, as well as time glasses which measured from one quarter minute to two hours. [Illustration: Figure 49.--Detail of wooden Davis quadrant inscribed "Made by William Williams in King Street Boston" for "Malachi Allen 1768." In collection of East India Marine Hall, Peabody Museum, Salem, Massachusetts.] The name of Williams appears also in the Day Books of Paul Revere. Under date of April 16, 1792, there is the following entry: