Need help mounting wheel to hub.

[09112]

I took my rear wheels off my Allis B and didn't realize the left and right mounting blocks were different. The bolt shoulders are also different and I can only assume they are designed to compensate for the left handed thread. Can someone tell me which side the block with the larger bolt hole goes on?

 

[Xfaxman]

Pictures might help.

Some pictures here that you might be able to zoom in on: allis b - Google Search