I have seen several posts of folks asking for and engine stand adapter, so they can mount a rotary engine on to an engine stand. So, I thought I would take a photo of mounting and engine to an engine stand without using an adapter.

I pull the studs out of the first iron and use spare bolts from an old Rx7 rear end, which match the holes in the front iron. I bolt up the stand to three of the hole and it work great.
Here are some photos.