I have a "European Delivery" optional equipment sheet from 1969 suggesting that the price of a ski rack for the 280 SL was $32.00!
BTW, front and rear bumper guards were a $15 option (for all 4), automatic antenna was $49 and Limited Slip Differential was $38. "All around" tinted, heat insulating glass was $28. Interesting.
Kevin
Boca Raton, FL
1967 230 SL Automatic
670 Light Ivory
113 Bronze/Brown MB Tex