Vintage double-breasted Black blazer men Navy Military Uniform Suit Jacket

This belonged to my late grandpa who served in the Navy from the 1950s to the 1970s. This is likely from an earlier period in his career because it almost fits me well (Im 511.5 and about 200 pounds, about 24% body fat ), but the primary issue is that the armholes arent high enough for me. The white line on the back is from an old hanger. Double breast breasted doublebreasted Adler clothier 15th street Philadelphia men mens size large Buttons boho indie costume Halloween #navy #doublebreasted