clip:170685

170685

133518

181510

123195

142190

62789

104019

320651

168379

76995

15120

88356

314694

104020

209045

98139

121193

296816

299387

223944

121196

121194

168333

266639

137556

245021

181852

318438

46631

266647

313071

138943

75006

82166

72260

241453

76996

127395

90912

61825

62788

160813

72016

266611

254432

287469

252685

218846

245982

82170

41753

141022

204975

296828

311804

72015

204967

143882

285766

246897

190636

143889

49722

36382

88320

...

clip:170685

clip:170685

clip:170685

clip:170685

clip:170685

clip:170685

clip:170685

clip:170685

hi

small

large

{"x":0,"y":0} to {"x":0,"y":0}

Copyright © details on Wikimedia Commons.

TU-Dortmund-Mensa-Mathetower-2013.jpg

Icon description

Icon description