No (and yes). Odder Odd Rods is the first series #1-66 and Oddest Odd Rods is the second series #67-132. But the Oddest Odd Rods checklist is incorrect, it's the Odder Odd Rods checklist. So, yes the checklists are duplicates. But no, they're supposed to be different.
Maybe they should be combined into one entry "1970 Donruss Odder/Oddest Odd Rods" with the complete 132-card checklist.
I wonder if BOBSCARDZ collects these stickers?
Someday my cards may double in value and then be worth half of what I paid for them.