Small correction, Amazon's IPO was in May 1997. The $10m in venture capital is correct though ($2m common, $8.2m preferred).
They of course had a relatively small business, which matches with the $10m in VC and times. $15.7m in sales for fiscal 1996. Their sales ramp is impressive considering the Web at the time: $875k in 1Q96, $2.2m in 2Q96, $4.1m in 3Q96, $8.5m in 4Q96, $16m in 1Q97.
They raised $50x million in the IPO, and had a $560 million valuation at the end of the first day of trading.
Their S1:
https://www.nasdaq.com/markets/ipos/filing.ashx?filingid=124...