That the companies have the exact same name, address and operators sounds odd to me, like it would be very difficult for them to argue in court that it is not the same company, as they haven't even tweaked the name slightly. I may just be misreading the records here.
Separate from the dissolution, some research on their business location to see if any connections can be established, or time lines clarified. I have yet to find a direct record of the cards, which I doubt exists.
Greenwich Street still exists, along the western side of Manhattan close to the shore. It looks like 286 isn't a valid address anymore, but that many of the buildings on this street are the old and tall brick businesses. Their store might still be standing under a different numbering scheme.
Robertson apparently did not have the building to themselves. In 1916 the H.C. Wetterau Co., "receives and delivers" eggs, cheeses and butters at the address, at the same time the Robertson Candy Company was still using it too. (
https://www.google.com/books/edition...sec=frontcover, page 1010).
A complicated court case I don't have the patience to read 1,000 pages of for this tiny footnote of card history has the Horace Frick machining company there in 1909, and shows they owned machinery there through at least 1912, when Roberston Candy Co. was also there. (
https://books.googleusercontent.com/...Ex_CwjMrNWuVRw)
In 1914 a W.T. Wheeler had his yacht registered to this address, again when Robertson Candy Co. was using it still. (
https://www.google.com/books/edition...sec=frontcover)
A 1901 (pre-Robertson) report of the Committee on Fire Patrol says it was a five story brick building (which sounds exactly like how many of the buildings on this street today look like on Google) and has it occupied by 2 businesses. The other businesses on the street were 3-7 story brick (
https://www.google.com/books/edition...sec=frontcover)
In 1909, the Crown Sweets Co. is listed by the Health Department as being at the 286 address, just before Robertson Candy seems to have been founded. Robertson may be descended from this company, or took over a previous manufacturer and retailers confectionary space and equipment.
https://www.google.com/books/edition...J?hl=en&gbpv=0