I don't remember ever seeing any warnings printed on ammunition boxes about not using factory ammunition in old or antique guns, just warnings similar to those shown in the pictures above. Modern.38 S&W factory ammunition (with one exception, being Buffalo Bore) is lightly loaded with smokeless powder to pressures no higher than the old black powder .38 S&W loadings from the 19th century precisely because there is such a large number of old top break revolvers still around, and that people still shoot them. Buffalo Bore sells a more heavily loaded .38 S&W cartridge which they warn is to be used ONLY in newer solid frame revolvers, not top breaks. Maybe someone does have a box of those which shows that warning. See posting #17 above. That might be your best bet.

I suppose you could contend that any revolver made prior to around 1900 (or slightly earlier) was designed for the use of ammunition loaded with black powder, and that type of ammunition is no longer generally available. At least in the USA, .38 S&W ammunition has been loaded using smokeless powder since 1894.