Phil wrote:I really don't know how old it is. The sign is from a small chain of bakeries on Long Island, NY.
Phil, the way that I would do this is pull the jpg file into a photo editor like photoshop and crop out the fonts you want. Since your font aren't completely colored, use a paint gun tool and fill in the fonts with black. (see attached) Then goto one of the many online font identity websites and upload the file. In this case I used https://www.fontsquirrel.com/matcherator
which identifies it as closely matching 'a song for jennifer'.
Remember to google for online font identifying sites. Try several, or stick with ones you like. There are MANY that will identify your font relating closely to nothing but purchase fonts. Of course, you may see something that is better and worth paying a few dollars for... personally, I would not pay for any font since there are tons out there for free. good luck and hope this helped.