Tail lenses ( old style )

[Chris Vaught <CVaught@hawaii.rr.com>]

What do the tail lenses that screw in from the backside look like? I was
going through my large pile of spare parts and I found two perfect lenses
that screw in from the back. They are Lucas but they are larger than the
ones that screw in from the outside. If they are the old tiger style I do
not need them so speak up if you need a pair.
Chris