// Points from mh91.dat in the archive: http://m-selig.ae.illinois.edu/ads/archives/coord_seligFmt.tar.gz
// Not necessarily in the same order as in: http://m-selig.ae.illinois.edu/ads/coord/mh91.dat

mh91_points = [[1000,0],[996.377,0.0295],[985.6058,0.3317],[967.9727,1.3068],[943.9279,3.2515],[914.0482,6.3511],[878.9975,10.6758],[839.4885,16.1838],[796.2511,22.7405],[750.0072,30.1343],[701.4549,38.1047],[651.2585,46.3592],[600.0451,54.5975],[548.4034,62.5225],[496.8865,69.8574],[446.0135,76.3493],[396.2739,81.7788],[348.1291,85.9585],[302.0155,88.7342],[258.3472,89.9806],[217.5206,89.566],[179.8154,87.3374],[145.39,83.2665],[114.4236,77.4099],[86.996,69.8219],[63.0823,60.7715],[42.8522,50.6682],[26.5151,39.7301],[14.0151,28.2339],[5.3587,16.761],[0.7545,5.8988],[0.2351,3.1992],[0.0016,0.2542],[0.1638,-2.5034],[0.5073,-4.2065],[1.0893,-5.7479],[2.0018,-7.1857],[3.2525,-8.6202],[5.6373,-10.7811],[8.5764,-12.9543],[17.9155,-18.3388],[35.1255,-25.5808],[57.2146,-32.5637],[83.8229,-39.1251],[114.6041,-45.0859],[149.2338,-50.2708],[187.3979,-54.5724],[228.6897,-57.9055],[272.7462,-60.1237],[319.2754,-61.2281],[367.8297,-61.3514],[417.8267,-60.5399],[468.7563,-58.7585],[520.1753,-56.0814],[571.5397,-52.6699],[622.2155,-48.6213],[671.6237,-43.9272],[719.3363,-38.6015],[764.9842,-32.8032],[808.1418,-26.7847],[848.3414,-20.8253],[885.0683,-15.2172],[917.7825,-10.2261],[945.9174,-6.113],[968.8361,-3.0762],[985.8722,-1.1644],[996.419,-0.2433]];

linear_extrude(height=20)
scale([15, 15])
translate([0,0])
scale (0.001)
polygon(points=mh91_points);