Absolutely. My parents have crisp B&W snapshots from their baby years in the early 60ies. They even have old B&W party snapshots from my grandparents in the 50ies, all of which look still great. Then around 1965, the snapshots become colored (not Polaroids), and the quality is... not as good. I wonder of the photographs just aged badly, or if they already looked like that 60 years ago. I also suspect that color film was much more expensive back then than B&W film, and the average consumer just bought the cheapest color films they could get.