This is vdB10. Nothing fancy; sort of a classical reflection nebula. I'm working my way through them as the weather permits. At this rate I should finish the vdB catalog in, oh, ten years!
I almost bought an AP160 a few months ago but unfortunately the seller seemed quite dodgy and it was a lot of money so I pulled out.
I see quite a bit of vignetting around bright stars (the bars going through the bright stars). Much like the FSQ106N does on the bright stars at the edges of images. I wonder where that came from. Your 155 does not do that and neither does my 140 with 155TCC.