R D Calvert ( 1919 - ) is a British painter. R D Calvert s works have been auctioned off multiple times, with realized prices varying according to the size and medium of the artwork, for instance of 73.36 USD for THERE'S NO DOUBT ABOUT IT, THE M.T. R.A.S.C HAVE SEEN A GREAT DEAL MORE IN THIS WAR THAN SOME PEOPLE WILL ADMIT' in 2013