Notes: The SS press blocks that put pressure on the edges of the window; there are 2 short and 2 long The pusher disc is the connecting piece between the push rod that extends down from the press frame, and the spring. The larger of the two holes is to contain the spring. These are part of the sealing assembly with the M-II press frame, Image 307, and the M-II Fixture, Image 291.
maryh_margherita_threeparts.pdf