Hello everyone, I have an interesting item that I purchased earlier today at a flea market, and am wondering if I can get some help in trying to date the item. I found what appeared to be a french lunchbox made entirely of copper, but upon closer inspection I had realized that it appeared to be some sort of portable stove. I have tried to research the company ( whose marking is on the back) and its approximate age, but I was not able to discover anything about it, except for some literal translations.
On the front of the box it says:
La Frileuse - “Sensitive to the cold”
Marque depose - “Registered trademark”
Jechauffe sans danger - “Caution when hot”
On the top of the box it says:
Chauffeuse Cavaille - ?
Brevete S.C.D.C. 25277 - “Patent 25277”
La frileuse - ?
Also, I have not cleaned it because I thought that it looks more authentic with the soot. Do you recommend that I clean it? If so, how do you recommend is the best way to remove the patina that has formed on the front of it?
Thank you, and if you have any questions I can post more pictures or answer any questions that you may have.