{HEAD ~ An arcuate slot} of at least 180° in {TAIL ~ the lid top} permits squeezing pressure to be applied to the lid skirt at two diametrically opposed points to effect displacement of a portion of the lid providing access to the bottom of the lid for swinging the lid open 
{ HEAD ~ An arcuate slot } of at least 180 ° in { TAIL ~ the lid top } permits squeezing pressure to be applied to the lid skirt at two diametrically opposed points to effect displacement of a portion of the lid providing access to the bottom of the lid for swinging the lid open
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL 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