Bruce - almost certain the W&W machine you found dates to ca 1860. Serial number on the cloth plate agrees with Cooper¡¯s info showing 1860. The presser foot shown in the machine without the glass insert is consistent with pre-1861 machines. I haven¡¯t seen a table with the slide-on work surface, but I haven¡¯t seen everything, by any measure! Great price for such an old example! Wish I were closer! Thanks for posting.
