I own an old W.T. Armstrong model 90 flute. It has offset G/A keys, solid silver headjoint, body and silverplated foot. I used to own a Model 303OB too which is open hole and B foot and inline G/A I had the hardest time on that flute because of the inline G .. my finger just would not stretch. I could have used plugs but I had the 90 (closed hole) and just sold off the 303. The 303 had a solid silver headjoint i believe,the rest was silver plated.