1934 brings new / upgraded tunnel options.
First, I will note that the 4266 Allegheny tunnel is no longer listed. The 4267 tunnel is still listed, but no name is associated with it.
A new 4268 standard gauge tunnel is listed, with the prominent mention that it is a lighted tunnel.
The 4268 tunnel is simply the 4266 Allegheny tunnel with lights installed on one end.
For the O gauge line, a similar development, the 261, 262, and 263 tunnels are still listed, again no names listed in the catalog and a new 245 tunnel is listed.
The 245 tunnel is simply the 264 Moffat tunnel with lights installed.
They look a bit better when lighted up
NWL