And to follow up on what Wimpler said...
I too have seen production figures as low as 2,000 on the Globe based on Serial numbers etc... but certainly less than 5,000.
Since no Harrison Petzval has been seen with a serial # greater than the 12,000 range, even the Petzvals are "uncommmon"
CC Harrison was given loans by Scovill and EHT Anthony about 1861 to help finance his operations, and Anthony owned a fairly substantial interest in the firm...about 1862-3, Anthony sold those interests to Nelson Wright ( see attached # 1 ), then after Harrsion died in 1864, Wright sold out to American Optical late 1864/early 1865 ( see attached # 2 from 1866 Humphrey's Journal advertisement)....Then, about 1867, American Optical was bought out by Scovill ( see attached #3).....The Globes would continue to be sold thru about 1872ish...then Richard Morrison took center stage as the heir apparent as America's finest photographic optician and with his 1872 Patented Wide Angle Lens with significantly improved performance over the Globe ( see attached # 4 )....
Dan
PS - Joseph Zentmayer was also part of the Globe story..... Although primarily a Microscope maker/optician, he set out to prove he could improve upon the Globe lens in 1865-66*.... See http://www.americanartifacts.com/smma/micro/zenobit.htm for more information.... The Zentmayer Lens is as rare as could be.... Much more the "Holy Grail" of American Lens collectors than the Globe....by far.... see post below
* The story is a bit more complicated and involved Coleman Sellers....
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