Could someone please explain to me the difference between an open and closed collar

Bustquarterhound · June 2, 2026 3:39PM

I would like to know what an open collar looked like and how it was used compared to a closed collar and how it was used at the early mint. Thanks. Dave

jmlanzaf · June 2, 2026 3:41PM

https://forums.collectors.com/discussion/881818/what-is-the-difference-between-open-and-closer-collars

BStrauss3 · June 3, 2026 6:56AM

Close not closed... that and the prior post will get you there!

scubafuel · June 3, 2026 7:25AM

For bust quarters, not much functional difference between the two from what I can tell. Both collars added reeded edges as the coins were struck.
The “closed” or “close” collar probably had a different look or mechanism due to the change in presses between 1828 and 1831.

Bustquarterhound · June 3, 2026 11:38AM

@scubafuel said:
For bust quarters, not much functional difference between the two from what I can tell. Both collars added reeded edges as the coins were struck.
The “closed” or “close” collar probably had a different look or mechanism due to the change in presses between 1828 and 1831.

I know this might sound crazy but,having never seen a die (collar) for appling the reeded edges . And never seen a coin with any evidence of a broken collar. Knowing the reading is to consistent to have been applied with a castaing machine. I'm wondering if the reeding could have been applied while stamping out the planchets. Cutting in the reeds while punching through the silver sheets. Just a thought but seems plausible. Dave

Greenstang · June 4, 2026 6:13AM

**I'm wondering if the reeding could have been applied while stamping out the planchets. Cutting in the reeds while punching through the silver sheets. Just a thought but seems plausible. Dave

The reeding is part of the collar and is applied to the planchet when the coin is struck.

Bustquarterhound · June 4, 2026 10:45AM

@Greenstang said:
**I'm wondering if the reeding could have been applied while stamping out the planchets. Cutting in the reeds while punching through the silver sheets. Just a thought but seems plausible. Dave

The reeding is part of the collar and is applied to the planchet when the coin is struck.

Any idea what year this collar is from?

jacrispies · June 4, 2026 11:00AM

@Bustquarterhound said:

@scubafuel said:
For bust quarters, not much functional difference between the two from what I can tell. Both collars added reeded edges as the coins were struck.
The “closed” or “close” collar probably had a different look or mechanism due to the change in presses between 1828 and 1831.

I know this might sound crazy but,having never seen a die (collar) for appling the reeded edges . And never seen a coin with any evidence of a broken collar. Knowing the reading is to consistent to have been applied with a castaing machine. I'm wondering if the reeding could have been applied while stamping out the planchets. Cutting in the reeds while punching through the silver sheets. Just a thought but seems plausible. Dave

Here is evidence of a broken collar in the Bust Dime Variety Identification Guide that points to a close collar setup instead of reeding applied otherwise:

-Off center coins always have no reeding (disproves shearing), as opposed to Castaing-applied edge lettering that is always apparent on Capped Bust half dollars.
-Reeding on early coinage is nearly always unevenly pressed i.e. one side stronger than opposite side. (disproves Castaing and shearing)

Bustquarterhound · June 4, 2026 11:15AM

Thanks jacrispies

Could someone please explain to me the difference between an open and closed collar

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