John Singleton Copley portrait of Josiah Shackford, commissioned lieutenant of the frigate Raleigh in July 1776.

MANCHESTER, N.H. — The Radisson Hotel at the Center of New Hampshire has a new tenant. Marshfield, Mass., auctioneers Willis and Karel Henry will kick off Antiques Week in New Hampshire with a two-day sale of American folk art on August 1–2. The Henrys snapped up the dates at the venue, home to the August 6–8 New Hampshire Antiques Show, after Ron Bourgeault of Northeast Auctions consolidated his August Americana and Marine & China Trade sales. Northeast will this year run a single saleat Treadwell Mansion in Portsmouth, N.H., on August 14–16.

Henry’s two-part, cataloged auction will consist of a various owners’ session on Saturday, followed by property from the collection of Flo and Howard Fertig on Sunday. Each session will feature 250 to 300 lots. The Henrys auctioned Shaker artifacts assembled by the Fertigs in September 2014.

Co-author with Stacy C. Hollander of Revisiting Ammi Phillips: Fifty Years of American Portraiture, Howard Fertig nurtured a deep interest in American portraiture. Consigned to auction are works by J.S. Blunt, H. Bundy, J.S. Copley, J.W. Dodge, Wm. W. Kennedy, Wm. Matthew Prior, L.K. Rowe and others. Fertig especially loved portrait miniatures. Among the roughly 200 miniatures scheduled for sale are examples by William Chamberlain, the Dash artist, James Ellsworth, Rufus Porter and the Puffy Sleeve artist.

“What is wonderful is that he kept a complete history of everything he bought. The provenance on these works represents a good cross-section of prominent dealers and collectors,” said Willis Henry.

Also slated for sale are printed and watercolor memorials, decorated stoneware, watch hutches and miniature shoe-form pincushions.

Americana from the collection of William Moore, who taught at Milton Academy and was especially interested in Vermont artifacts, will highlight the various owners’ session.

Will Henry credited his wife, Karel, with the idea of moving the auction to Manchester.

Willis Henry Auctions is in Marshfield, Mass. For more information, 781-826-3520 or www.willishenryauctions.com.