Description:

Cautions:

Concepts demonstrated:

Setup Time: Short

Difficulty/Commitment: Straightforward

Visibility:

Related demonstrations:

References: PIRA number 3A70.10
Video Encyclopedia 9-08
Sutton S-18; DHP Mx-11;
AJP 58(9), 833; TPT 21(4), 257 [haven't seen either of these]