Stiegel style decanter

By Glass Nut, 23 July, 2018
Description

Wondering if anyone can help identify the general era and origin of this decanter. It's hand blown, slightly irregular with some bubbles, a rough pontil, decorated with red enamel grapes and white detail, and marked in enamel on the bottom and on the stopper with "4.".
Thank you!

Category
Glass
Medium
Glass and enamel
Distinguishing marks
"4." painted in enamel on the bottom of stopper and bottom of decanter in the (rough) pontil mark. There is a little wear on the enamel decoration in parts and some small scratches on the bottom.
Condition
Excellent
Size and dimensions of this item
10 1/2" high, about 4" in diameter.
Date Period
18th or 19th c.
History
Purchased in U.S. shop 2018.
Price Paid (If known)
$37
For Sale?
No
Photos