Outer 1848 Oxford to Fritwell with Oxford dbl rim CDS in blue, “ppd” and “1” in red (unpaid)

Outer 1848 Oxford to Fritwell, with Oxford double rim CDS dated MY 4 1848 code E in blue. Has conflicting markings, as it has “1” postage rate in red (unpaid) and “Ppd” manuscript in top right.

Bottom left says “Corn Factor” – Henry Webb was a corn merchant