Oil Button

[Tony Press]

When did the Oil Button appear as my late '27 Chummy does not have one unless it went where the dash lamp is situated or the hole was welded up in an earlier resto.  Photo attached.

Mark,

The dashboard has a Lucas SM5 switchboard for a coil engine - should have a Lucas SM3 switchboard for a magneto engine.

It looks to have the 1929 on large patent plate, as noted mounted too high, instead of the small patent plate normally fitted in 1927