No, not t-tops......
These are the modern Gibbo (i presume) 80's onwards pickups
In the middle of the bottom edge is a capital "T" - its out of a 2000+
Les Paul Double cut - the top of the "T" is slightly obscured by the solder blob!
I've seen these in loads of other 90's and 00's Les paul studios standards etc etc........
But how do you know whats what????? 490T, 490R, 498T, 500T etc etc
Max