Proofs often get circulated by accident (usually not by the mint though), I know because I have found circulated proofs in rolls many times. But the answer is mostly yes. Because most proofs are issued of a circulating design. In the case of the examples I just posted, yup for sure you can find those designs currently in use in general circulation, but not as a 'reverse' like the bottom proof example.
A proof is not intended to be a circulated coin. Yes, the design is the same as the circulated coins, but the method of manufacture is different.
As far as circulating US coinage goes, the only real change in my lifetime has been the half dollar in 1964. This country is long overdue for an overhaul of our coinage.
It is hard to get the color right on this bimetallic coin. Here is my Czech Republic 1995 mint set. Mintage of 19400 of the mint sets. Over 100k of the 50 and 20 koruna coins (Krause), which seems to me is low.
That's odd. Every other forum I've ever participated in requires that I use a hosting site. [insert scratching head gif]
The two I visit-here and Collectors Universe-allow you to upload directly. That is what I often do. I have used the copy paste method when the photo is already somewhere else online (and that is now problematic since they aren't working on old threads).
Just purchased, and on the way. Czech. 20 Korun 1947, and Czech 50 Korun 1948. They bend the rules a bit, as they are part silver and uncirculated. Both are circulating issues.
I also have the 20 korun — lovely coin. You'll be happy you bought it. The Czechs sure do punch above their weight when it comes to coins.
IDK - ciruclating should mean business strike put in general circulation through banks to people and businesses.
Still on the lookout for favorites. I'm partial to these two, not that "busy" is always better. And these designs ARE rather busy-looking. Looking for a "minimal" beauty, too...