The uppercase variation is white lettering on a black background-- similar to the originals. On the lowercase secrets is a set of initials that are black on white with a black border.
Since the inverted triangles look like pennants, there's a strong black blank on the left parenthesis secret and an outlined blank one on the right parenthesis secret. In this way, the initials might be used for monograms or interspersed with the blanks to form brief banner messages.
Font Family: Deco Pennant Initials JNL
Tags: 1930s, 1940s, art deco, initials, novelty, pennant, retro, unusual