The phrase "a signed portrait of" is correct and usable in written English.
It can be used when referring to a portrait that has been autographed by the subject or artist, often in the context of art, collectibles, or personal gifts.
Example: "She proudly displayed a signed portrait of her favorite actor in her living room."
Alternatives: "an autographed portrait of" or "a portrait signed by".
In addition to portraits of Viennese strippers, torch singers and ancient celebrities on the walls, there is a signed portrait of Thurgood Marshall near the bar).
His party offices are crammed into two rooms beneath an airfield control tower on the town's outskirts, with a signed portrait of Winston Churchill the only reminder of the lavish clubrooms the party once occupied in the town centre.
A chintzy lamp dangling above us melts the food until the toppings start creeping off the bread; a signed portrait of Erich Von Stroheim looks on magisterially from the wall.
Cotsen's contributions ranged broadly from an in-kind gift of a signed portrait of Harriet Beecher Stowe to a major gift in 1994 to establish and support the Cotsen Children's Library, creating new facilities within Firestone Library for the collection and to endow research on children's books and education.
A signed portrait of the jazz drummer Max Roach levitating in the lotus position hung mischievously over a quotation from Wagner's "Tannhäuser". A giant 4-by-3-foot original etching of the Joachim String Quartet adorned a wall next to a blue and white porcelain cello made as a garden ornament, and on and on.
When he walked in, his assistant handed him coffee — in a "World's No. 1 Dad" mug — and he sat down at a table surrounded by pictures of his former dogs, a signed portrait of Sheryl Crow (he's a fan) and a view of the Statue of Liberty.
But honorable mention to Denmark Denmarkk on two separate occasions gave Obama signed portraits of its Queen and prince.
In fountains, water bubbles from spouts shaped like rockets, and signed portraits of astronauts adorn the walls of cafes, where coffee is served in the Turkish style with grounds in the cup.
The pictures that cover one wall are not signed portraits of celebrities.
Last week it arrived at the Worcester Art Museum in Massachusetts with a new discovery from a Rhode Island private collection: a signed Hudson portrait of a Creole brunette with upswept hair and a lace-trimmed black satin dress.
The 14-bedroom 18th-century townhouse, had been closed – a scandal, some would say, given its significance – for several years, but now sports a pub-sign portrait of Thomas, like a jaunty earring, and the freshly painted front door is open.
