Glittered postcards are rad!
This one is on the subtle side: the stripes in Mrs Langtry's gown have been overlaid with gold ...
... see the trim line near her neck, the two lines near the end of her sleeve, etc.https://en.wikipedia.org/wiki/Lillie_Langtry
... you can decide for yourself whether/not she was worth the effort.
This Rotograph Company card appears to be a photograph printed on bromide paper, rather than the 'usual' photograph printed on an emulsion layer, or via collotype, or ...