The bulletin is H150G from Oct 59 and refers to the change of the clear back up lamp to orange - this coincided with the change to orange indicators - nothing to do with orange brake lights.
I have never seen an orange brake lens other than those that have faded from red. There is no documentation that I have seen supporting their existence and logically I cannot see why GMH would do 2 different colours
Ken
Sure Ken I know where you are coming from and I appreciate that you have a vast experience with FE-FCs. From my perspective I'll see if I can find the Service Bulletin or similar that I recall (10+ years ago since I last saw it). I have every Holden SB from H1-G thru to the late 60's, plus all the other non general ones also.
I am 1000% sure that the FB amber lenses exist and are simply not just a faded or faulty lense, and were fitted to all Holdens from Jan to around April 60. I have owned more than 250 FB-EK's (but only 5 or so early nitro FBs) and these have been my main model of interest over the years, and my thoughts are that if GMH were producing amber lenses in ALL production FB Holdens in Jan 1960, which would include commercials with FE-FC tailights - it is at least PLAUSIBLE that very late 59 FC's had amber lenses also. However, it could also be naturally that this was implemented (and subsequently rescinded) only on the FB for the short time I have observed.
Interestingly, my sister in law owns a very early nitro FB (bought in '91 from the original owner with 36K miles) fitted with red stop lenses, but a set of amber lenses were in the boot. When naeively mentioning that the lenses were faded and could be thrown away we were told that these were the lenses the vehicle was fitted with when new and were subsequently changed when the vehicle was almost new. The only cars I have ever seen with amber lenses fitted have been early nitro vehicles apart from one or two people in the FB-EK scene who have retro fitted them as they are believed to be 'rare' without understanding that their application is incorrect to a post May '60 acrylic FB.
One last thought - It is simply possible in the absence of documentary evidence that these items are just faulty and were produced in Amber by the supplier in the initial batch and then subsequently corrected (which makes sense with the stories I have been told on a few occassions that GMH replaced the lenses with red ones when the cars were serviced) This would also explain why an amber lense has never been seen on an FC.
My only point is have a really good look at any amber lenses - as you say it is easy to tell if they are faded or not. unfortunately my mates FC from the early 90s is not known to me anymore otherwise I would do the same and be proven right or wrong once and for all
Not many FB-EK enthusiast know about the amber lense application. As stated before many lenses I have were in the rubbish bin practically, and replaced as they were thought to need replacing