Please be sure to read the two Antiques And The Arts Weekly photos. 
I'm a collector of John Gregory's art (lithographs, photos, etc.) and in 2005, I was asked to show some of my collection of his works at the Cape Cod Museum of Art. This piece - Even Tide - is one of the pieces that hung in the museum for the duration of the show. It photograph measures 13 x 16, and with the mat and frame it's 23 x 20. 
The handmade frame is by the Dwight Jameson (a master frame maker and owner of Jameson & Thompson Fine Art Services). 
Dwight and I salvaged what we could of the original mat with John Gregory's penciled signature and title of the piece, and mounted it on the back of the frame. 
The CCMA sticker (from the Cape Cod Museum of Art) is what the museum officials affix to all pieces that hang in the galleries of their museum. 
The Antiques And The Arts Weekly article is a preview of the exhibit. And I am the Henry Santoro mentioned in it. 
There are many John Gregory photographs floating around out there, but if you want an actual museum piece, here it is. 

Buyer in the USA pays $40.00 shipping (it will be professionally packed). 
Local pickup is also available.  

Have questions? Please ask. 
Want more or his work? I have that, too.