Rare 14 inch Bertha Bear

Hey I have an old Grateful Dead bear. It is a 14'' inch Bertha doll that I purchase probably 15 years ago. The bear has movable arms and legs. The bear is a stuffed with cotton, not beans. I have no idea how much the doll is worth. It is in excellent condition. No tears or stains. I searched all over the internet to see if I could find a similar bear to go by. If anyone has any info they could tell me about it I would greatly appreciate it. Thanks

chandler.severance@gmail.com