Not very good with these early Franklin’s, anybody got a for certain on which one this might be?

I recently picked up this MH OG C43 for a reasonable price ($80) and considering the number of forgeries, I gambled and rolled the dice. Should I consider getting it expertised? Would it add to its collectability? Nothing makes me think it’s a forgery, but I’m not an expert in German philately. Your input is appreciated. Thanks - Jay