Tossing in my 2 cents here ...
Anyone who has seen the milling process for cotton knows/is impressed by that fact that it's done in large quantities .
Although the initial gin mills from Eli Whitney and H. Ogden Holmes were rather small , this changed quickly for the American-grown variety of cotton .
We're talkin' BIG herkin equipment ... no small carding or sorting tables needed ....lots of Iron & dangerous drive-belts all over the place in Industrial Revolution times .
Raw cotton really wasn't 'sorted' much , just dumped onto floors & into hoppers & bins .
After the cotton was carded , dyed or spun ... inspection & sorting would be done for these processes .
Although I've seen antique 'carding tables' , they all were simply flat .
The lack of serious 'wear-patterns' on your table leads me to speculate that it was used for fairly soft mat'ls , light enough to cause little wear on the wood ... including , perhaps , a mail sorting table .
I don't know what your item really is , but it may indeed be from the textile industry ... perhaps a spooled-fiber dye inspection bench , etc .