That "little device" is probably the one with which you can see multiple images of the block.....like a kaleidoscope. It's not what I mean. Use binoculars instead. Or look in a mirror at the block which is behind your back.....that's the cheapest way.:)

Jan in VA

I have this pattern, if you put 4 blocks together, it makes a secondary design where the corners meet. The original pattern was done with two blocks, repeating in a checkerboard style. If you want the pattern, it was free from McCalls, PM me and I will send you the info - I can't recall now exactly what month etc it was from and I am not near my sewing room. GEMRM
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Jan, was this the Mary Ellen Hopkins around Bakersville,N.C.? Just wondering.

This is Mary Ellen Hopkins who wrote It's Okay (If You Sit on My Quilt), owned Crazy Lady and Friends Quilt Store in Santa Monica, was an originator in the speed-piecing/strip-piecing quilting revival in the late 1970s/early 1980s, and started Quilt Sitters Circle for the students in her It's Okay classes all over the country. She's in her late 80s now and is in a nursing home in CA. Early in her life she was married to a cardiac (or thoracic?) surgeon; they remained friends after the divorce and she occasionally told funny stories on him.

Jan in VA