This style chasuble is making a comeback and can be seen more and more in different parts of the world, as priests acquire new creations from online dealers to add to their sacristy collections. This set is particularly impressive and speaks well of the studio that designed it. Solemn sets include the "collarin" attached at the neck with a corded tassel, seen here in the above image as well as below.
These beautiful creations come from Spain, made by hand in the studio of R & M Ornamentos, a family-owned atelier based in the north of Spain. Their solemn sets are especially regal, enhanced with the neck apparel. The link for their website includes more examples of their "guitar" chasubles, all unique creations made according to traditional methods, seen here.
Below are images of the dalmatic, seen from the front and back, to give perspective.