The Me 262 V-2 in stage 2 was fitted with fin on its fuselage nose for unknown measurements. It is believed that this was a acoustic test measurement.
The fin material is believed to be opaque and the resinpart is the same colour, so the modeler can glue it unpainted on the Me 262 fuselage. The colour of the Me 262 V-2 is believed to be black over all or dark grey with a big white V-2 on both side of its nose and silver engine intakes.