I've seen many original/unrestored T/A-AAR 340+6 base plate seals that have the 2"-3" black cloth like tape covering the splice/seam which was typically glued together with the yellow 3M type glue.But my question is,where the shaker base plates also given the treatment over the seam?Or was it something that happened just to the T/A-AAR seals?? McCannix you out there.....