My observations from about 10 years ago (copied from my book)
NGC 4631 is a very mottled galaxy with a lot of detail. A broken up dust lane runs across the middle with knots on both sides. NGC 4627 is a bright round patch with a brighter center. The infall material between the two members was not detected.
Below is my eyepiece rendition using a "high glass count" eyepiece
22” f/4.1 reflector @ 255x Field: 19.3’
Seeing: 7/10 Transparency: 7/10 NELM: 6.5
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