Soviet 133 and 136 series ICs: 133LR1 (=5450) from Planeta Novgorod; 136LR3 (=54L53) from Integral Minsk
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/133232468@N07">Sergey G</a> from Russia
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/133232468@N07/18991606195/">133LR3</a>