Sometimes deep sky objects can prove to be visible even though experience says that they shouldn't be. Their individual magnitudes of about 10 would seemingly make them too dim when other brighter galaxies were not seen. But on one good evening of that week with better than normal sky clarity I decided to try and spot them. They proved readily apparent although I didn't manage to get them both in the same field at the same time due to the limited field of view of the 16 inch. What probably also helped was that these are nearly edge-on spirals and in this viewing geometry, often spiral galaxies are brighter than when viewed face on.
Magnification can help render dim objects more visible in urban light polluted skies.
In such instances, concentrating on smaller angular sized objects such as galaxies, planetary nebulae, and globular clusters can result in viewing success. While it is a hazy glow in smaller apertures, a 6 inch telescope can partially resolve some of its outer stars and it is fully resolved in apertures larger than 12.5 inches. Through the 16 inch using magnifications over 200, it was quite spectacular indeed and was completely resolved. Try finding other similar objects in your sky.