---------------------- multipart/mixed attachment >I saved a couple of treble ribs from an old Knabe grand that were not only >crowned, but laminated as well. > >Ron N > > Ron- What vintage was that? > Dale About 1901. The crown wasn't laminated, since the lamination was of one thicker flat bottom, with the thinner top with the crown machined in. The joint between the two parts was straight. It was like they had used the clamp to a curve and saw technique to machine the crown, but needed a thin enough piece in the short treble ribs to bend to the required curve. I haven't measured it, and am not sure where it is at the moment, but the curve looked considerably tighter than a 60' radius. Ron N ---------------------- multipart/mixed attachment--
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