The invention also comprises a method of {HEAD ~ block molding} and a mold assembly which may be used to make {TAIL ~ a block} which may be stackable to form structures of varying setback 
used to make
The invention also comprises a method of { HEAD ~ block molding } and a mold assembly which may be used to make { TAIL ~ a block } which may be stackable to form structures of varying setback
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH