grid reference TM 366 793
The Swan was built late in the 16th century, with late 17th century alterations. It was still open at least as late as 1967 (the latest licensing records we've been able to access).
The pub is listed in Wissett Street in the 1881 census.
It's shown on this old OS map from about the end of the 19th century. interactive map
To be sold, a Public House at Wissett, near Halesworth, known by the sign of the Swan, with a new built stable, and necessary conveniences thereto belonging, in the occupation of Wm. Manning. Freehold and in exceeding good repair...Enquire of Mr. James Mapes at Bungay or Mr. James Knights at Halesworth.Ipswich Journal, 16 Jan 1779***
To be sold by auction, by direction of the Executors and Trustees, under the Will of John Oldrin, deceased, all that excellent freehold well accustomed Inn, or public house, called or known by the sign, the Swan,, with stable, outhouses, yard, garden, pightle, pump of excellent water, and appurtenances, situated at Wissett, and late in the occupation of the said, John Oldrin…