Antonin Becvars' north (Borealis) and mid-declination (Eclipticalis) atlases of stars plotted in color by spectral type to magnitude 10, Epoch 1950. Both are in good shape other than my scratched-out signature on front page and possibly one or two penciled-in plots of comet tracks from about 20 years ago. Eclipticalis still has clear overlay; can't seem to find the one for Borealis. $50 each.
Also have Sulentic and Tifft's "Revised New General Catalogue of Non-stellar Astronomical Objects" (RNGC). Hardbound, good shape, rarely used. $30.