Capped Bust Halves Variety Collecting

I don't collect halves, but I do collect varieties of large cents. Here's my method. I seek out any R-4 variety. They're common enough to be found and much of the time not being sold as any particular variety, making them affordable. If I see an R-5 or higher that I can afford, I go for it. I figure that all the R-1 through R-3s I can easily fill in later.

When you complete the varieties, you can then start collecting all the die states.

Jumping from 1836 to 1810. Big difference with the older coins. Up to 90 different varieties

So I figured I would go for a year out of each decade for my variety search
1810 First Decade
1814 Second
1821 Third
1836 Fourth

Got 1836 almost done, and others off to a start. Interesting how the key attributes change from year to year.