Not sure if this is the forum to share antiques/loot in, but spittoons seem an appropriate historical topic.
Here's a pic of a Central City, CO saloon in the 1870s (courtesy Denver Public Library). (note the child, I assume an employee):
I recently picked up the same type of spittoon; Enamelled, cast iron. This one has a "S |" mark on the base. (I just washed it, my aim isn't that bad!):
And for pocket use, check out this one, with a patent date of 1885. I wonder how soon afterwards it was produced, esp considering they list the month and day on the patent?