Hi all, I am unpacking a few boxes of tubes. A few are quite photogenic, so I snapped away:
IMG_20180510_114144 by Karel Mars, on Flickr
IMG_20180510_114425 by Karel Mars, on Flickr
IMG_20180508_105722 by Karel Mars, on Flickr
IMG_20180510_114144 by Karel Mars, on Flickr
IMG_20180510_114425 by Karel Mars, on Flickr
IMG_20180508_105722 by Karel Mars, on Flickr