>>> Randlett names step 7 the Blintzed Bird Base in both The Art of Origami (1961, see page 145) and The Best of Origami (1963, see page 126). Step 10 is the basis of George Rhoads?s Bug, presented in Best Of Origami (it appears as step 3 on page 130). That?s the earliest appearance I?ve seen of step 10 explicitly. Rhoads explored the Blintzed Bird Base extensively, so you see several different treatments of it in his 1950s/1960s work.
It should be noted that Yoshizawa explored multiply blintzed Frog Bases back in the 1950s (his 1959 Cicada is made from what amounts to two Blintzed Frog Bases), so there?s a good chance that he created the BBB and ?step 10? as part of that exploration. Since he didn?t give instructions for his more complex creations, though, that must remain supposition. <<< Thanks, Robert, for your research. This was exactly the kind of detail I was looking for. When I attended your Cicada class at OrigaMIT I did notice the double Blintzed Frog Base in the crease pattern. Thanks again. Meenakshi
