That has been one of my theories as well in regards to the Ruth premium. R309-1 is not branded as a Goudey item. I find that slightly odd. If you didn't know any different, it just looks like a generic item. Goudey also distributed many other premium items during that time such as gloves, hats and balls. They would have been using outside vendors. The R309-1 offer shown below expired at the end of 1933, just before R310 was released. Curtiss Candy may have acquired stock from the same outside vendor that Goudey used. Just a theory and a guess, nothing more.
https://robertedwardauctions.com/auc...-display-sign/
Who has an example of an R309-1 or R340 Ruth in a General Gum envelope?
