// Points from s1221.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/s1221.dat

s1221_points = [[1001.82,10.52],[1000.1,11.25],[995.39,13.47],[988.34,16.76],[979.11,20.33],[967.25,23.8],[952.55,27.3],[947.44,28.39],[873.68,42],[799.52,52.85],[725.14,62.24],[650.74,71.45],[641.81,72.59],[604.57,77.17],[566.77,81.57],[528.6499,85.77],[490.51,89.75],[452.64,93.49],[415.37,96.93],[379.02,99.92],[343.85,102.32],[310.05,103.96],[277.76,104.69],[247.15,104.4699],[218.36,102.98],[191.25,100.11],[165.69,96.01],[141.66,90.77],[119.18,84.61],[98.38,77.71],[79.37,70.22],[62.23,62.22],[47.05,53.86],[33.88,45.28],[22.81,36.63],[13.91,28.08],[7.33,19.69],[2.97,11.52],[0.65,3.84],[0.37,-2.87],[2.71,-7.74],[8.59,-11.17],[18.0899,-14.22],[30.68,-16.87],[46.19,-19.1],[64.42,-20.87],[85.23,-22.16],[108.41,-22.9],[133.79,-23.04],[161.16,-22.48],[190.26,-21.01],[221.24,-18.14],[254.56,-13.93],[290.26,-8.94],[328.11,-3.46],[367.88,2.27],[409.29,8.02],[452.02,13.6],[495.74,18.8],[540.06,23.46],[584.6,27.42],[628.95,30.58],[651.27,31.83],[726.28,35.28],[801.2399,36.63],[876.1,33.7999],[950.81,24.72],[969.69,20.84],[984.52,16.68],[994.45,13.26],[1000.03,11.19],[1001.81,10.52],[999.27,-3.38],[997.61,-2.54],[993.06,0.01],[986.26,3.77],[977.3,7.99],[965.71,12.27],[951.29,16.79],[946.27,18.24],[873.64,36.96],[837.04,45.23],[822.24,48.31],[807.4,51.12],[792.5,53.6],[777.54,55.72],[725.14,62.24],[650.74,71.45],[641.81,72.59],[604.56,77.17],[566.77,81.57],[528.6499,85.77],[490.51,89.75],[452.64,93.49],[415.37,96.93],[379.02,99.92],[343.85,102.32],[310.05,103.96],[277.76,104.69],[247.15,104.4699],[218.36,102.98],[191.25,100.11],[165.69,96.01],[141.66,90.77],[119.18,84.61],[98.38,77.71],[79.37,70.22],[62.23,62.22],[47.05,53.86],[33.88,45.28],[22.81,36.63],[13.91,28.08],[7.33,19.69],[2.97,11.52],[0.65,3.84],[0.37,-2.87],[2.71,-7.74],[8.59,-11.17],[18.0899,-14.22],[30.68,-16.87],[46.19,-19.09],[64.42,-20.87],[85.23,-22.16],[108.41,-22.9],[133.79,-23.04],[161.16,-22.48],[190.26,-21.01],[221.24,-18.13],[254.56,-13.93],[290.25,-8.94],[328.11,-3.46],[367.88,2.27],[409.29,8.01],[452.02,13.6],[495.74,18.8],[540.06,23.46],[584.59,27.42],[628.95,30.58],[651.2599,31.83],[726.28,35.28],[771.28,36.48],[786.3,36.5],[801.31,36.1],[816.31,35.27],[831.28,33.99],[875.48,28.6],[949.38,14.34],[967.94,9.15],[982.44,3.9699],[992.11,-0.14],[997.53,-2.59]];

linear_extrude(height=20)
scale([15, 15])
translate([0,0])
scale (0.001)
polygon(points=s1221_points);