
If you look at the bottom of this page, there is a really good synopsis on the history of olds. Later fullertons have an open pinky ring, straight cross bracing, hexagonal mouthpiece reciever, and machine engraved bell. An early fullerton has all of the same components as an la model: ie, closed pinky ring, 'z' shaped cross bracing, rounded mouthpiece receiver, hand cut block engraving on the bell. Many believe these horns rival modern day professional trumpets, but this is just an opinion. As i said earlier, horns manufactured at the la plant and 'early fullertons' are usually the most sought after horns. To give you an idea of their reputation in the seventies, when the company folded in 1979 noone bought it.

For the most part horns built in the los angeles plant are the most sought after, these being built up until 1954. Here is a chart of serial numbers and the year they were built according to that serial number: here's a quick run down on olds ambassadors. First off the horns you want to look for will be based on the serial number.
