69 Chevelle BB Auto Transmission line tags

[Woj]

Doing some research regarding the transmission cooler line decals for 69 BB Chevelle. I've got the original decals on a 69 Malibu 350/TH350 and a 69 Camaro 307/pg. The trans lines on both cars have a yellow tags that display a two letter code followed by the last 4 numbers of the partnumber for that line. On the build sheet for 69 Chevelle BB, under trans lines it gives the code CN CM. One for upper, one for lower. I'm not sure which is which.

I'm soliciting help from anyone that may still have the original tags on their 69 BB chevelle with Automatic Trans. I'd like to verify if the tags are yellow with black lettering and which line is upper and which is lower (CN or CM). Any help would be appreciated.

I did have a 69 BB el Camino years ago that had the tags, but sold the car and don't recall what the tags looked like.

Thanks.

Phil Woj.