No info on maker but I think this might be the same pattern fork in a eBay listing in google images. I can't get the ebay link to show up but I did find this reference which I think is the same item -
Vintage Sterling Salad or Vegetable Fork Crown on end of Handle ,Centre Hall, Pennsylvania, United States ,QMstore.com
[TABLE="width: 100%"]
[TR]
[TD="class: sellerNotesContent"]
“In good vintage condition with normal wear consistent with age. Bowl does have a light gold wash. Is monogrammed with the letter D.”[/TD]
[/TR]
[/TABLE]
[TABLE="width: 100%"]
[TR]
[TD="class: attrLabels"]
Composition:[/TD]
[TD]
Sterling Silver[/TD]
[TD="class: attrLabels"]
Type:[/TD]
[TD]
Serving Fork[/TD]
[/TR]
[/TABLE]
[TABLE="width: 898, align: center"]
[TR]
[TD]
Offered is a lovely sterling silver serving fork, which is either a salad fork or vegetable fork. It is marked sterling on the reverse side. Measures 7 inches long. Bowl measures 2 1/8 inches across. Gram weight is 32.[/TD]
[/TR]
[/TABLE]