Micro to Mini SIM card adapter
From the specs, open source.
Here's the code for drawing the SIM.
linear_extrude(height = 0.76) polygon(points=[ [0,0],[15,0],[15,22],[12,25],[0,25], // Outer Mini SIM [1.5,3],[13.5,3],[13.5,15],[11,18],[1.5,18] // Inner Micro ], paths=[[0,1,2,3,4],[5,6,7,8,9]]);