[tedzan]

Re..P460/42, in prior post here I noted that I strongly feel that the Red Cobb was doubled-printed with this back.

Re..AB 460
None of the 6 super-prints (of which the Red Cobb is one) are found with the AB 460 back. These 6 cards were first
printed in the 350-only Series with the AB 350 (Frame) back. Subsequently, Amer. Litho. extended these 6 subjects
into the 460 Series.

Since they were initially printed with the AB 350 (Frame) back, they cannot exist with an AB 350 (No Frame) nor an
AB 460 (No Frame) backs.

TED Z