A normal open cluster, as any open cluster. But the nebula ...
Planetary or Ring Nebula ?
At least, the last (classification) was Ring Nebula :
http://adsabs.harvard.edu/full/1993IAUS..155..139C page 143.
cluster:
http://www.astrobin.com/full/87121/0/
http://www.astrobin.com/full/87124/0/
nebula:
http://www.astrobin.com/full/87127/0/
the last photo is 1.5x in Photoshop