Pec Thing Antique & Flea MarketNovember 7, 2016 in Illinois by robl “Pec Thing” Antique & Flea Market Semi-annual show held the 3rd Sunday weekend in May and September. Rain or shine. Open: Saturday and Sunday 8am-5pm. Location: 500 West 1st Street, Pecatonica, IL., 61063 Phone: 815-239-1641