[TR] Early TR4 lens question

[spook01@comcast.net]

My TR4 needs a rear tail lamp lens and I see two different part numbers.  One is L669, the other L779.
>From the photo, they appear identical, but my car came with the L669.
Is this just a p/n change, or are the lens different?
Info will be appreciated!
R 

Sent from my Verizon Wireless Phone

----- Reply message -----

To: "davewillner" <davewillner at pa.net>, "triumphs at autox.team.net" <triumphs at autox.team.net>
Subject: [TR] TR3A horn bracket finish originality question