Coca Cola rare 37" metal sign

Help! Can anybody give me any information on this sign. I've only come across two other signs very similar to this one on the internet. The only difference to the other two is that mine is a two part sign. Have looked and looked and have yet to find another like it. It's 37" tall and about 12" across. It still has the back part (looks likes cardboard ) attached to it. shows it age. I call it character. Any information would really be appreciated.