The Silver Squirrel has dated this piece to the 1910s.
I would date this piece to c1910. It has been beautifully pierced with the inside being a wooden ball with original purple velvet cover, note the cover is faded and a little worn but can be replaced as the loop section unscrews allowing you to access the internal fabric. It is in super condition being free from dings splits and repairs just a faint push to the top of the loop holder. The ball measures approx. 2 inches across with the loop extending 0.75 inches. The whole piece including the internal parts weighs 65 grams. A very rare example.
The Silver Squirrel has dated this piece to the 1910s.
You can view the stock and full dealer information on the The Silver Squirrel Profile Page
Rare American Sterling Silver Ball Pincushion Sewing Needlework Henckel Ny 1910
