{TAIL ~ A composite masonry block} having {HEAD ~ a front surface} and a back surface which are adjoined by first and second side surfaces, as well as a top surface and a bottom surface each lying adjacent the front, back, and first and second side surfaces 
{ TAIL ~ A composite masonry block } having { HEAD ~ a front surface } and a back surface which are adjoined by first and second side surfaces , as well as a top surface and a bottom surface each lying adjacent the front , back , and first and second side surfaces
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH