Dallmeyer Serial Numbers
Dallmeyer serial numbers are now available on line at - www.samackenna.co.uk/Dallmeyer/index.html - this is the extensive work of the late Sean MacKenna.... Above is a transcribed section from page 219 in the stereo lens production book, the book covers Jan 1863 to 1866, lens numbers 4638 to 10759, these are all 4,3/4 inch Petzvals, #820 lenses, #410 stereo pairs !! The other 'missing' numbers will be other types of lenses and can be found in the other books. The lenses are made in batches of 12, 10 or 8 probably the number mounted at one time on the grinding head..... My lens, 8358, the optical grinding was started Sept 27 1864 by Mr Bicknell, the brass turning by Mr Dillow was finished Oct 15th 1864.
Dallmeyer Serial Numbers
Dallmeyer serial numbers are now available on line at - www.samackenna.co.uk/Dallmeyer/index.html - this is the extensive work of the late Sean MacKenna.... Above is a transcribed section from page 219 in the stereo lens production book, the book covers Jan 1863 to 1866, lens numbers 4638 to 10759, these are all 4,3/4 inch Petzvals, #820 lenses, #410 stereo pairs !! The other 'missing' numbers will be other types of lenses and can be found in the other books. The lenses are made in batches of 12, 10 or 8 probably the number mounted at one time on the grinding head..... My lens, 8358, the optical grinding was started Sept 27 1864 by Mr Bicknell, the brass turning by Mr Dillow was finished Oct 15th 1864.