Look here: https://www.mylespaul.com/threads/wh.../#post-9355728Were the bobbins butyrate?
The bobbin material of my '67 T-Top looks identical (shiny) to my PAF bobbins. Just looked at a '78 T-Top and the bobbins look different (this is just an observation and can't replace a proper material analysis) and have different tool marks. Also the base plate is different. And the '78 has zinc plated slugs.
The T-Top wire looks different from original plain enamel but changed color (getting brighter) over the years.Was the wire plain enamel or poly?
Yes, all T-Tops I analyzed had short A5 magnets. But I think it is possible that very early ones also used A2 or A4, though not very likely.Did they always use short A5 magnets?
PU covers and pole screws were typically chrome (or gold) - not nickel - plated.