I've been looking into the repro stickers and have the artwork done. It seems Delco had dozens of battery numbers for vehicle variations over the years. The 3 most popular appear to be R89, R89S and R89W, since that is what is being reproduced. The R89 and the R89S appear to look identical, so one could get the R89S and sticker it for R89 if the HD battery option wasn't ordered with the car.
As near as I have been able to figure out, the above Danger decal was probably used starting in 1973 due to DOT regulations requiring charcoal flame arrestor battery caps. Thus for 1973-up the Red Delco caps are incorrect and the plain charcoal gray caps and no Delco eye shoud be used.
The sticker would have been used until the Delco Feedom batteries came out around 76-77.
The small silver and black stickers offered by the repro battery companies are possibly for 72 and earlier or for over-the-counter batteries. Not sure.
1973-up over-the-counter batteries had a different sticker with circular date punch-outs for warranty purposes.
