This is a 1998 "Monkey Shines" promotional calendar from The RenzOil Inc.

Promotional calendars featuring humorous or anthropomorphic animal imagery, such as "Monkey Shines," were a popular marketing tool for businesses in the mid to late 20th century. Companies would often commission these calendars to distribute to clients and customers, associating their brand with lighthearted content. The "Monkey Ward" reference likely alludes to Montgomery Ward, a historic American department store, adding a layer of nostalgic business connection.

This particular calendar, distributed by The RenzOil Inc., a fuel and propane supplier, exemplifies this marketing strategy. The inclusion of specific dates and months, along with the playful "Monkey Shines" theme, made them a practical yet engaging giveaway. Such items are now collected by enthusiasts of ephemera, advertising history, and vintage collectibles.