We are looking for the emissions decal/sticker for our '73 98. I've attached a pic of what ours looked like. Anybody have a source? eBay seems to have yellow ones.

 

You might check Fusick. They reproduce some of the decals:

http://www.fusickautomotiveproducts.com/

 

Check out the OD label. Says it's for "UB" code 455s as well as others, which should be the same as your 98's. And these do not look yellow. It's Osborn reproductions decal DO 0152. I do not know if it's paper or what. If it's paper, it will dissolve away eventually.

http://www.fusickautomotiveproducts....p?number=DC134

https://www.ebay.com/itm/1973-Cutlas...IAAOSwAItdUYmD

 

Is Mark Cornea (Dr Decal) still in business? His decals always seemed to be a bit more accurate.

 

for 73 he only showed 2 yellow ones. One for H/O 455 and one for 350 for other cars. So for this application, he doesn't have any. I do agree, he's got pretty good decals.