Full USAF serial 52-1467.
c/n 050.
The B-57A was very similar to an RAF Canberra B.2, although it had a crew of only two instead of three and had a rotating bomb bay in place of Canberras clamshell doors.
This is an RB-57A photo reconnaissance version, one of 67 built. It is on display with the Maryland Aviation Museum as part of the Strawberry Point Flightline.
Martin State Airport, Maryland, USA.