Congrats on the great morning. I am still looking for my 1st SLQ. I believe most large silvers in my area were dug back in the late 70s and early 80s. I have only found one big silver and it was 10" down, and I believe too deep for the early detectors.
1970 COMPASS-
WHITES SILVER EAGLE-
WHITES DFX, 4X6DD COIL, 6X8DD COIL, 950 COIL, 10X12SEF COIL-
GARRETT PRO POINTER AT, GARRETT AT PRO , MINELAB EXPLORER SE with 8.5x12.5 Cors coil
Whites Spectrum XLT, Garrett AT Pro, Macro pinpointer, Garrett carrot pinpointer,
Lesch digger, Nel Tornado coil for ATPro, Garret ATMax with Nel Tornado coil
Congrats on an absolutely great find!! I collect those and always look forward to seeing them posted- yours is a key date and in spectacular condition- worth some decent money in that grade.