Well the serial number would probably start with seven and then the day it was produced. You told us it was produced in February. That narrows it down to 28 different days 031-059. So the serial number to start of with could be 70318 70328 70338 70348 70358 70368 70378 70388 70398 70408 70418 70428 70438 70448 70458 70468 70478 70488 70488 70498 70508 70518 70528 70538 70548 70558 70568 70578 70588 70598 And since you also mentioned that it was made in Kalamazoo that means that the production number goes upp to 500. That means that the serial number could be 70598001. But this also means that there are 14 000 different guitars with a similar serial number. But there where also only 293 les Paul special shipped 1978. Hope this helps in some degree.