As shown in FIG 4, translucent sheet 52 is supported with a slight distance between bottom 20 and {TAIL ~ sheet} 52 to provide {HEAD ~ an opening} beneath sheet 52 so that received messages are readily slid under translucent sheet 52 as shown by arrow 58 
As shown in FIG 4 , translucent sheet 52 is supported with a slight distance between bottom 20 and { TAIL ~ sheet } 52 to provide { HEAD ~ an opening } beneath sheet 52 so that received messages are readily slid under translucent sheet 52 as shown by arrow 58
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH 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