VINTAGE HANEEL TRI-VISION BROWN BAKELITE FILM VIEWER WITH "CAMERA" INSTRUCTIONS

PATENT U.S 2361661 IS ON THE BOOKLET , NICE BROWN &BLACK COLOR TO IT AND THE EYE PIECES EXTEND OUT.

I DON'T KNOW VERY MUCH ABOUT THIS,  THE INSTRUCTION BOOK IS MOSTLY ABOUT THE CAMERA NOT THE VIEWER.       

                                                                                                                                       COOL PIECE FOR THE ANTIQUE COLLECTOR.

THANKS FOR LOOKING!