[bgar3]

The rare book market went thru a forgery scandal in the 1930’s when some incredible research, much like this research, discovered that a number of pamphlets thought to be first editions, were published at a later date. The forger was identified as one of the world’s greatest collectors and bibliographer, who himself authenticated the forgeries. The story is fascinating and research continues to this day. The book that first described the forgeries is An Equiry into certain Nineteenth Century Pamphlets, by John Carter and Graham Pollard.
If anyone is interested I could supply other titles. The forger was Thomas Wise.
There have been other interesting more recent examples like the Mormon and Texas history forgeries, in which a number of people were killed.