The Scenic Display Set No. 920 was available in 1957 and 1958 and contained enough material to build a realistic tunnel.
Included were four feet of mountain paper with two No. 920-2 Tunnel Portals that were inscribed "HILLSIDE" with the circled "L" at the top and the date "1957" at the bottom right.
In addition this kit contained bags of yellow and green grass, gravel, and paints to complete the scenery on a tunnel.
There are no variations.
This tunnel kit is very hard to find today in unused condition.