The duo who travel the United States searching through dusty barns and jammed attics for treasures – Mike Wolfe and Frank Fritz of “American Pickers” – will be in Washington in September.

The producer of the popular History Channel show is looking for private collectors in the state to take part in the filming.

They’re interested in large, unique collections that people want to first talk about, then sell. Just a few of the items they list as “wanted” include motorcycles, cast iron, decoys, shell boxes, folk art, wagon wheels, and early mouse traps.

The production company Cineflix notes: “Mike and Frank only pick private collections so no stores, malls, flea markets, museums, auctions, businesses or anything open to the public.”

Those interested should send their name, phone number, location and description of the collection, with photos, to americanpickers@cineflix.com, or call 1-855-653-7878 (855-old-rust).