Widow's Son:
It's a leather top quiver.There were two lengths available for the 4 arrow quiver. The long would fit the 1966 Kodiak. There were three arms for the 8 arrow quiver, short, med. long, plus a long lower arm.
Here are the bow quivers for 1966, this is a photo from a scanned image so it does not show detail well. Email or PM me for a better picture.