Here's a nice one (I think) acquired recently. An advertising/accounts postal card sent from a company in my hometown of St. Catharines Ont.
The Welland Vale Manufacturing Co. manufactured tools from 1869 to 1965.
Here's a website with it's story...
http://www.yesteryearstools.com/Yes...e%20Co..htmlThe card looks to be an account update for a gentleman in Douglas Ont.

Postmarked in St. Catharines on November 1 1898 on a UX18 postal card (1¢ carmine rose Queen Vic) and has a faint Douglas Ont. receiver cancel on the back dated November 2.
Also, I happen to have one of their shovels, a spade I
inherited from my dear ol' Mom. Still works a treat!