Collated and authenticated

Some people were at some event.

https://endchan.net/.media/6f29e208096ec7e30f1020b547746545-imagejpeg.jpg

 >>/12796/
 >>/12805/
 >>/12806/ ->  >>/12810/ ->  >>/12813/
 >>/12807/

 >>/12812/

 >>/12813/ et al ->  >>/12824/

(several) ->  >>/12883/

 >>/12889/ ->  >>/12893/

 >>/12941/ ->  >>/12942/

 >>/12987/

 >>/13055/