Unintentional pinhole selfie

I really have no idea when this happened.  I must have been adjusting something with the camera at the time.  Taken at Valley Forge National Historic Park in Pennsylvania.   

Technical details:
Zero Image 2000 6x6 wooden pinhole camera.
Ilford Delta 100 film shot at 100 ISO. 
Developed in Diafine for 4 minutes (part A) and 4 minutes (part B) @ 20 degrees Celsius in Paterson 3 reel tank.  5 seconds initial agitation with swizzle stick followed by 5 seconds of additional agitation ever minute thereafter. 
Negative scanned with Epson 4990 on holders with ANR glass.