  Recent angle-resolved $c$-axis resistivity measurements of the stripe-ordered
La$_{2-x}$Ba$_x$CuO$_4$ (LBCO) with $x=1/8$ revealed an unexpected dependence
on the direction of the in-plane magnetic field. We argue that these and other
available data for the $c$-axis transport point to the existence of
superconducting pairs of two different types in the $x=1/8$ LBCO below the
stripe ordering temperature. The pairs of one type carry finite momentum and
are confined to the Cu-O planes; the pairs of other type (probably the
conventional $d$-wave with zero momentum) propagate along narrow conducting
channels traversing the sample in the $c$-axis direction. The evidence for this
comes from the observed exponential temperature dependence of the $c$-axis
resistivity $\rho_c(T)$ which we attribute to the thermally excited slips of
the superconducting phase and flux flows. We present a simple theory to fit the
observed $\pi/2$-periodic dependence of $\rho_c$ on the direction of the
in-plane magnetic field and the other data.
