So this is not really from the Main Gate, but it is a fantastic brochure. In 1955, Crane was a sponsor in Tomorrowland and their exhibit was the Bathroom of Tomorrow. The entrance had a fun interactive fountain as shown on the front cover.

The interior shows a couple of different bathrooms of tomorrow.

This little piece is part of the brochure and lists the Crane products used.

The back cover features some of the dioramas and displays once you had seen the bathroom of tomorrow.

Be sure to click on the images for larger scans.