I was browsing on a rare historical photos website and came across this:
https://rarehistoricalphotos.com/students-at-smith-colleg-massachusetts/
This is dated 1948, look at how far the chainring teeth are separated, it's like half density, aka every inch instead of every 1/2 inch.
Someone here recently wrote having removed every second tooth, without elaborating why.
Apparently, back then, chainrings were produced like that.
https://rarehistoricalphotos.com/students-at-smith-colleg-massachusetts/
This is dated 1948, look at how far the chainring teeth are separated, it's like half density, aka every inch instead of every 1/2 inch.
Someone here recently wrote having removed every second tooth, without elaborating why.
Apparently, back then, chainrings were produced like that.