What year was Rival Crock-plate made?

Unfortunately, there's no information readily available about a specific product called "Rival Crock-plate." Rival is a well-known brand that manufactures various kitchen appliances, but "Crock-plate" doesn't seem to be a common or established name for one of their products.

To help you figure out what you're looking for, could you provide some additional details? For instance:

* What does the appliance look like? (Shape, size, color, etc.)

* What does it do? (What is its function?)

* Do you have a model number or any other identifying information?

With more information, we can perhaps help you pinpoint the specific Rival product you're interested in and find its year of manufacture.