So is this tubeset in the 60k range the highest set of Sir Joseph Whitworth Fluid Compressed Steel tubes found? By 1930 Vickers is trying to increase their footprint in the Italian market, as well as the global, so I doubt they are peddling Whitworth. Any idea when the last raw tubes were shipped to any maker, including Purdey? WC's seem to be very late.

Kind Regards,

Raimey
rse