| Type | Button |
|---|---|
| Shape | Round |
| Color | Black, Gold, White |
| Quantity | 1 |
| Original/Reproduction | Antique Original |
| Material | China |
| Time Period Manufactured | Pre-1930 |
Check the listing for details. Pattern #7, Shape #2 China Whistle Antique Button ~ Harder To Find Pattern. Color: Black, Gold, White. Listed at 45.00 USD. Pattern #7, Shape #2 China Whistle. The idea of "whistle buttons" was that the unsightly thread would be hidden within the button. NBS defines a whistle as having one hole on top and two or more on the reverse.