This listing is for a nice:  Floyd Collins CRYSTAL CAVE / MAMMOTH ONYX CAVE Brochures KENTUCKY

The condition is nice / unused 

I did not see a date on the brochures, however the stamp on the envelope would put this in the late 1950's

There are 2 brochures, a hotel list and an envelope.

PLEASE SEE MY OTHER LISTINGS IN MY STORE FOR SIMILAR ITEMS AND COMBINE FOR THE LOWEST POSTAGE. 

Please feel free to message any questions to me.(78)