There was a time when Naira had more value than dollars- See this

      This is an  International passport that showed that Naira was worth more than dollars in 1981.
Read what the reader sent:

"I'm an ardent reader of your blog and thought I share this with everyone. Stumbled on my mum's old int'l passport and apparently Nigeria was once a great country. Once upon a time N1000 = $1480 back in 1981"