Carlsbad Cavern Visitor Guide Pamphlet 1930"s Cavern Supply Company

This item is a visitor guide for Carlsbad Cavern. It was published by the Cavern Supply Co. This was the company that ran the cafeteria in the cave 750 feet below the surface. The pamphlet advertises that the price of lunch including drink was 50 cents. I believe the item is from the 1930's due the other items I found it with. The pamplet shows some wear from age. (See photos) It is 8" x 9" when opened.