The Babe Harmonica Bat is authentic, and is worth about $150, in my opinion. It would be closer to (or just above) $200, if not for the heavy wear to the air chambers.
The Pin is from American Nut & Chocolate, and worth around $20. Here's one currently on eBay...
https://www.ebay.com/itm/1950s-Vinta...ukE-:rk:1:pf:0
Hope this helps.