stamps 1-3-4 count to be 14x17 which basically makes them E grills but do have proper number of points for a Z the points do not have the right shape if I recall correctly. The second last on the 3c washington Is an F . I'm not the best at these but enjoy seeing and learning as well. Maybe someone with more expertise can explain the subtle differences between Z and E grills other than rarity
Would need to see the other side of the Stamps. from a quick glance they appear to be common grills and condition will dictate value. The 3rd stamp has bad thins so probably not much value there.
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