[sphere and ash]

Finally, one poster asks the skeptics to put their money where their mouth is. This is a reasonable request. I am willing to wager the suggested amount for the George Wright photograph [edited to make clear that I am wagering against a match] based on the following criteria: that we jointly share the cost of retaining Mark F. and have his report published here. Mark uses preponderance of the evidence.

I will go further and make the same offer on the ‘Knickerbocker stereoview.’ If Mark believes the stereoview does not contain enough information to make a determination, then I would ask the original poster to bear the cost of the report.

I do not not know Mark and have never spoken to him. We did exchange a few emails about some photographs that I own about five years ago.