RARE Vintage Levi 505 Straight Leg with Red Tab with "R" only.

RARE Vintage Levi 505 Straight Leg with Red Tab with "R" only. Size unknown.They are in excellent pre-owned condition, no holes, rips, or stains. The bottoms of the legs are not frayed. They have the small rectangle tag on the waist, 3496 stamped on the button , and the red tab only has the R. There are no care tags on the inside but there have been and they got cut out; I purchased them as vintage jeans.They have a zipper fly. This is what I learned about the R only tab: The Red Tab itself is trademarked by Levi's. therefore, one out of 10 Red Tab's on the back pockets feature a blank Red Tab with only a ® symbol. As only 10% in production feature this Red Tab, it is more special and rare to have these on your jeans. Measurements taken when pants laying flat and are approximate. Remember this is vintage sizing. Waist to Leg Opening: 39 inches Inseam : 30-31 inches Button to Zipper: 7 Inches Leg Opening: 6 inches Waist: 27-28 inches Come from a smoke-free household.