File:Imperial War Museum Plane 2.jpg - Wikipedia, the free encyclopedia
File:190D9-1.jpg - Wikipedia, the free encyclopedia
Eric_son my friend, I've shown here a few ETC bombrack images.
The Ju.88 installation is useful because it shows both the holding claw arrangements. The rack nearest the fuselage is probably the more useful of the two shown, because it too (despite being an exterior rack) is in the same style as those racks which were semi-recessed, similar to the Hs.132.
In the Hs.132 the SC500 bomb was carried semi-recessed in the mid fuselage.
Therefore, the view shown is relevant.
The other images and links are what I was able to find, but in some ways are not quite as helpful, though they are all that I could find that had some use to you. They are of the ETC 501, 503, and 500 series of bombracks. Some of these were in fact dual purpose, in as much as they were also fitted with plumbing for drop-tanks.
I hope the info helps.
Kind and Respectful Regards Eric_son My friend, Uyraell.