WW II The Overrun Countries -- 12 stamps from 1943 and 1 from 1944.  These are all US Postage, 5 cent denomination

Historic American Flags all US postage, 10 stamps, 6 cent denomination

A Child's Vision of Christmas, Stamps of Canada, 12 stamps: 5 @ 5 cents, 5 @ 6 cents, 1 @ 10 cents, 1 @ 15 cents

Man's Best Friend, Issued by Poland Feb 2, 1969, eight stamps of varying denominations

The Ten Commandments, 11 total stamps of varying denominations, the additional on is "Moses shows he tablets of the law".  

On the reverse of the display panel is the English translation of back-of-stamp descriptions of paintings.

Stamps are MNH, each in its plastic slip cover. Some of the mats have tape on edges as shown in picture.  In original envelopes.

Mat size is 11 x 14; display board is 13 x 10 inches.