7002-295. MCCRACKEN Circlevel in original case. 5" x 7" aluminum triangle that has 2-1/4" circle inside with red bisection lines, but it doesn't serve as a level so possibly was either broken or was a prototype since it just has a paper backing. "W.E. MCCRACKEN, CIRCLEVEL, PAT PEND, ANAHEIM, CA" cast around the circle. I've seen this before but no information is known about it. Inside triangular felt lined box. Unusual and likely from the 1940s or 1950s. Good+ 50-100