cryptograph

Still, the few figures etched on old cemetery headstones are like cryptographs, offering clues to visitors trying to crack the mystical code of how lives were lived.

Natural history is not a cryptograph to be deciphered, it is a series of facts and incidents to be observed and recorded.

I mean to have a try at our cryptograph.

Golconda: a place near Hyderabad, India, noted for its diamonds. cryptographs: from two Greek words meaning hidden and write.

Without noticing my abstraction, the Professor began reading the puzzling cryptograph all sorts of ways, according to some theory of his own.