  NSV 1907, formerly listed as an irregular variable in variability catalogues,
was classified as an Algol-type eclipsing binary in the Catalina Surveys
Periodic Variable Star Catalogue. We have identified NSV 1907 as an ultraviolet
(UV) bright source using measurements from the GALEX space telescope and
detected obvious out-of-eclipse variability in archival photometric data from
the Catalina Sky Survey, which instigated a closer examination of the object. A
spectrum and extensive multicolour photometric observations were acquired, from
which we deduce that NSV 1907 is a deeply eclipsing, nova-like cataclysmic
variable. Apart from the orbital variations (deep eclipses with a period of P ~
6.63 hours), changes in mean brightness and irregular short-term variability
(flickering) were observed. The presence of a secondary minimum at phase phi ~
0.5 was established, which indicates a significant contribution of the
companion star to the optical flux of the system. We find possible evidence for
sinusoidal variations with a period of P ~ 4.2 d, which we interpret as the
nodal precession period of the accretion disc. No outbursts or VY Scl-like
drops in brightness were detected either by the CSS or during our photometric
monitoring. Because of its spectral characteristics and the observed
variability pattern, we propose NSV 1907 as a new moderately bright long-period
SW Sextantis star. Further photometric and spectroscopic observations are
encouraged.
