Outer 1850 London to Fritwell with Islington By Rd 1d Paid in blue, and Brackley arr mark on reverse

Outer 1850 London to Fritwell, with “Islington By.Rd 1d Paid” 2 line in blue and duble rim London Paid mark dated AP 12 1850 code AD. Backstamped by double rim arrival CDS of Brackley dated AP 13 1850 in blue