Tri-color vivex,  tri-color carbro, and dye-transfer prints are the product of essentially the same three-color subtractive assembly process.  The vivex process was developed in Great Britain in 1928 and used rich pigments which were applied using a thin layer of acetate rather than glass.  

C.F. Trangmar is not listed as a photographer, but there was a British watercolorist and engraver named Charles Frank Trangmar who was active during the first half of the twentieth century.

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Rose

C.F. Trangmar, 1948
vintage tri-color vivex print
8″ × 6.25″