Cleburne,
As far as I can remember, from back in the 1960’s & 1970’s, the Tredegar Parrott and the Napoleon were the only cannon models created by this company in North Carolina. I had a store in Pennsylvania back then and with an interest in the civil War and Artillery, I contacted the company and carried their models for sale. I was able to purchase several of the Napoleon cannons, and only one Tredegar Parrott. I tried on other occasions to purchase more of the Parrott’s but it was to never happen. I would guess that the brass barrel Napoleon was the most popular so that is the only model that they concentrated on. The Napoleon Brass barrel is well executed and nicely marked on the muzzle face with markings of * NAP 12.30 * 1” Scale. In addition under the barrel they are marked with serial numbers. The number on one of mine is CG1691. I do not know the total number of Napoleon’s produced or the number of Tredegar Parrott rifle’s produced. The Parrott barrel is without any muzzle markings or serial number. Around here some where’s, after 40+ years, I still have some of the advertising material and informational picture post cards supplied with the models. Over the past 10 years, I have seen only two of the Parrott models offered for sale on eBay and several of the Napoleon Models. The Parrott barrels are blackened steel and in most cases are showing rust and pitting especially in this Florida salt air environment.
To try and protect the overall finish, several years ago, I had hard plastic covers created. This did help.
Cpt Ed