Paste-Pot

Does any one know what a "paste-pot" is, literally and/or figuratively? Thanks for any information.

I saw on a few sites references to "billstickers"--men in Victorian England whose job was to post advertisements on poles. The glue they used was carried in a "paste pot".
There is also a comic book hero series called "The Trapster" aka "Paste Pot Pete" aka Peter Petruski who invented a super glue and uses it to fight various baddies.

I worked for newspapers back in the days before computers. We would type our stories on long rolls of paper. If we had to insert a paragraph, we would make a cut with a metal ruler and then paste in the new section. We used "paste pots," containers with a brush attached to the underside of the lid. (Memories.)

How is "paste pot" used?