None show all chrome. Exterior decor package louvers are all chromed.But only back edge of each louver show chrome.
No exterior decor, louvers are not chromed and completely painted.
This is my understanding.

I believe all Nova SS had chrome edge louvers.
Here is a picture of my 1969 Nova Ss with Factory original paint.
This car has no exterior décor package.

All SS had the chrome edge.

What is more valuable in the collector car market the 1969 l78 or the l34

L78 is more common, more power AND more collectible then the L34's. It's just all around MORE, including $$$

L34's are rarer!! L78's are still worth more.

The louvers for exterior pac and SS actually have 2 different part nbr. The SS NOS parts came pre primed on the painted areas, while the exterior option ones came all chrome.

What was the price difference between the L34 and L78 new?

L78 vs L34..$$$
 

The L78 option was $316.00

The L34 option was $184.80

Not much more for whole lot of extra power.

-wilma