'an excellent specimen' is a correct and usable phrase in written English.
You can use it when you want to say that something is an example of something that is of particularly good quality or well done. For example, you could say: "This painting is an excellent specimen of Rembrandt's early work."
Ten minutes later, I was talking to Walsh with the excitement a reporter feels when getting to know an excellent specimen of the tribe.
I dropped a jar over it and captured an excellent specimen of a male black widow, dainty and thinner than its sisters.
Finding an excellent specimen of the Cuban sandwich — roast pork, ham and Swiss cheese with pickles on a roll, panini-pressed into gooey, crispy deliciousness — should, I figured, be easy.
Notman himself accurately described it as an "excellent specimen of the Italian style of architecture," whose "beautiful proportions" along with its "fine details and massive crowning cornice, give it an air of stateliness and grandeur".
Fiddler last surfaced, along with his brother Thomas ("Bubz"), in the funk group Mr. Fiddler back in 1989; their record was an excellent specimen of soulful if derivative P-Funk that sank without a trace.
"Lament and Prayer" is an excellent specimen of Mr. Kernis's acute sense of timeliness, being one in a series of memorials -- here remembering the Holocaust, but in other music Bosnia and 9/11.
James Ross, captain of, later described their involvement as "a most excellent specimen of what they are likely to be.
He is an excellent physical specimen, a lovely natural footballer who would seem to have every gift required – cool head included – to play top-level football.
If nothing else, there's a cracking tyrannosaur in there and some gorgeous photographs of this excellent specimen, especially of the skull which came out a treat.
However, excellent specimen adequacy of NP flocked swabs has recently been reported [ 43].
It's a parade of excellent specimens.
