1 regulator
      restoration notes
2 regulator trunk
3 regulator parts
4 air control
      board
5 original
      leathering
6 broken lid
      repair
7 shellac cleaning
8 cutting leather
9 skiving
10 rib hinges
11 hinge assembly
12 measuring
      gussets
13 tightening and
      unloading gussets
14 primary gasket
      and sealing
15 trimming
16 test rig
17 pressure
      measurement