June 1966 - January 1967 arden green - buckskin, buffalo, sandalwood, burnt grey - buckskin, buffalo, sandalwood, toledo red, venetian red- buckskin, buffalo, sandalwod, white - buffalo, sandalwood, toledo red, zircon blue - buckskin, buffalo, sandalwod, February 1967 - September 1967 arden green, - buckskin, buffalo, ebony, sandalwood, burnt grey - buckskin, buffalo, ebony, sandalwood, toledo red, venetian red - buckskin, buffalo, ebony, sandalwood, white - buffalo, ebony, sandalwood, toledo red, zircon blue - buckskin, buffalo, ebony, sandalwod
Colour and interior options copied and pasted from Rudigers website which confirms brief availability. Prior to this they offered Tan which was also a brown colour. Rover also offered Saddle Tan on the P5B but by the 70's i think Bronze was the brown equivalent but not as brown as Buffalo if you know what i mean!
