Several cautions for you here, so please note:  our scan shows you the somewhat tattered front paper cover of this set.  It says there are nine photos.  *BUT* the set had been opened long ago, and re-sealed itself, and we cannot and would not guarantee all nine photos are there.  We’re certain there are more than one.  And we take them at their word that these are “photos” and may not be postcards at all.  With all that out of the way, this is definitely old and we like the instruction they provide, that this was produced “to further a correct interpretation of this Memorial”.  (How could it be misinterpreted?  That the four Presidents were Buchanan, Harding, Tyler, and Fillmore?)  We will assign Grade: 2