This is a medium grade Tromsa snaredrum. The hand inscribed serial # on the seam patch indicates a mfg. date of 1963. Oddly, it came with a matching bassdrum that has several dates and signatures of an individual going back to 1951.
The drum came with a Tromsa made batter head carrying the double mallet Sonor logo and an original set of carbon steel 12 strand wires. 12 brass lugs.
The colour came out a little light. It is really, a darker aquamarine with more green in it.