OpenForge 2.0 Spiral Stair Down (ORIG) OpenLock Base

OpenForge 2.0 and OpenLock
A roleplaying terrain feature/accessory to depict a spiral staircase going down. The first step is a trip hazard, as OpenForge has thicker floors, the first tread is a little high, but serves to provide that roleplaying feel for a set of stairs going down (grinds against the OCD mind). Was asked to do this, so I scrunched the brain to try to get a close proximity to a roleplaying accessory. Not a high wall, but could be in the middle of the floor, so a good option.