Hi Brian,
Very unusual and original subject. I looked at my collection and found few which have connection to sand.
This stamp issued by Israel in 2016 for the memorial day of fallen soldiers and victims of terrorism. The subject is "The Sand Remembers" and it taken from a song by the Israeli poet Nathan Yonatan. The first paragraph is written on the tab.
"The sand remembers the waves,
but the foam has no remembrance,
except for those who passed with the night wind,
from whose memory it shall never be erased."
