The aircraft pictured is a 757-200PF (Package Freighter) specially built for overnight parcel service by companies such as UPS. The smaller cockpit door, closer to the nose allowed to relocate the separation between cockpit and main deck cargo hold to gain enough space in the main deck cargo hold to carry another container of paying parcels. As far as I can tell, only UPS received new-built -200PF. However I seem to remember that another carrier, perhaps ET
converted one or more aircraft to such configuration.