The 4th Foot as Airfix made them.
28th Foot as I converted the headgear.
These two units date from the late 1970s. In my collection these units have the codes F06 and F03. My notes reminded me that I have actually visited the 28th Foot's museum (that would have been in 1996) and also that I did the 4th Foot's light company in 2000. I really should take some more photos (and use them in a game or two).
If you are a Facebook user with an interest in Napoleonic wargaming I highly recommend the group; you just need to apply for access from the moderators.