"Mungo Ponton was a fascinating and complex character and Henry Talbot freely gave him credit 25 years later for discovering the properties of potassium bichromate, the basis for Talbot's early work in photogravure. Unfortunately, the 1838…"
Larry, I'm not sure if this is the proper way to contact you...
I bought the Orleans Talbotype on ebay about 10 years ago. I took a chance- the seller was in Colorado and was offering the 1846 and 1847 issues of the Art Union. Everything else he was selling was furniture. I bought them both for 51 dollars, hoping it hadn't been removed, and was pleasantly surprised!
I am an amateur collector at best, New York City public school art teacher with very limited funds, but just incredibly interested in the early history of photography.
Please let me know what else you would like to know about it!