Complex sentence: TSR's first set of "Character Record Sheets" featured a cover by Tom Wham, and came as a pack of 28 sheets, published in 1977 for the basic "Dungeons & Dragons" game.
Split into simpler sentences: TSR's first set of "Character Record Sheets" featured a cover by Tom Wham and came as a pack of 28 sheets. It was published in 1977 for the basic "Dungeons & Dragons" game.