Moreover, with labelled cover 40 attached to filled vessel 10, the now unitary container 8 is easily stacked and stored, as bottom 12 of vessel 10 will solidly engage the substantially flat panel 46, rim 44 and cover shield 48 of {HEAD ~ cover} 40 of {TAIL ~ other unitary filled collection containers} 8 
of
Moreover , with labelled cover 40 attached to filled vessel 10 , the now unitary container 8 is easily stacked and stored , as bottom 12 of vessel 10 will solidly engage the substantially flat panel 46 , rim 44 and cover shield 48 of { HEAD ~ cover } 40 of { TAIL ~ other unitary filled collection containers } 8
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 OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH