Lancets from past days

Did anyone ever use a lancet like this?

Back when you had do draw several liters of blood from your finger to cover a strip. The wipe the blood off after a min. And then time it again and I think there was a second wipe but now it’s a blur.

Then you got a chart of gradient blue squares and you actually dosed with that information.


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@Timothy, I saw those lancets for use in the 1970s when I was working in the health care industry.