Group of 16 US Duck Stamps 1963 (RW30) to 1970 (RW37); Signed, Two of Each, Most Not Hinged

These stamps have been used for hunting, they are signed by the hunter (the law). See photos.
Some stamps are signed lightly.
All stamps appear to have good color and detail. There are no thins.
All stamps are flat and have not been folded or creased.
Only one stamp has a hinge mark, one has a small amount of pink paper in corner on back.
Some stamps have partial gum.
RW34 1967, has full gum, is written on back "RW37", but corrected as RW34. Front side is good.

From nonsmoking home.
Shipped via USPS first class mail.