Vintage JAYO Perfect Automatic Bookmark with original illustrated box and printed instructions.

TESTED AND WORKING!

This unique mechanical metal bookmark attaches to a hardcover book and automatically marks your reading position.

Features:

• Original JAYO Perfect Automatic Bookmark

• Tested and working mechanism

• Silver-tone metal construction

• Original illustrated cardboard box

• Original instructions printed on box

• Patent marking D-163572

• Jayo Perfect Bookmark Inc., New York, NY

• Vintage collectible reading accessory