I've got an old W&H DuCoil I'm trying to I.D. I can't match the Model number up with anything on my charts as this is an early (51 or 52) distributor and my charts do go that far back and the numbering system changed over the years. I'm thinking it's early Caddy, 49 on up??? Can anyone post a picture of the base for these so I can compare? Thanks guys, Matt