Late 50s to Early 60s Bear Archery Bolt-On 4 arrow leather top quiver.
The rubber gripper usually has stiffened over time but replacements are available.
That one appears to be in great shape. Many are still in use today. I have 8 or 9 of them and most are tuned up and ready to go. I've used them exclusively for hunting over the past several years.
Trap