Can anyone give me a time line on these buttons

[Pa Neal]

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[nhbenz]

1910-1923, if I'm seeing correctly that there was a black finish applied to them, which was discontinued in 1923. The outer lip/rim they they have was added in 1910, several years after the adoption of the Great Seal for this use.

 

[Pa Neal]

1910-1923, if I'm seeing correctly that there was a black finish applied to them, which was discontinued in 1923. The outer lip/rim they they have was added in 1910, several years after the adoption of the Great Seal for this use.

Thank you

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[sutphin]

NICE FIND

 

[TheCannonballGuy]

If your buttons have a maker's-mark ("backmark"), tell us what it says, because that can help narrow down a button's time-range of manufacture.
http://www.treasurenet.com/forums/what/112828-great-seal-button-backmarks-help-5.html