These were very big souvenir items in the 1950s and 1960s.

You could get these porcelain plates for under $10 and they looked good on any wall (kind of).  Many communities had these plates made to sell as fundraisers for anniversary dates, especially around village's centennials and bi-centennials.  Many schools, churches and fire departments also had them made to raise money for their organizations.

Yes, these were hot items 40 years ago, but....does anybody collect collector's plates anymore?

Check these out:

Hartwick College (ebay)
Sidney, NY (ebay)
NYS Grange (ebay)
Cooperstown (ebay)