~ Gauss 18" Bass, Woofer or Reinforcement Speakers ~
Model 4882
2 each
SPEAKER #2 PICTURES; DETAILS:
The cone number stamper was obviously rather archaic; Probably a large, soft, roller-digits, rubber stamp; Which allowed white ink onto the backing rubber, and stamp & smear blobs on and around the numbers, digit misalignment, etc; The misaligned '6', almost missing '4', highly smeared '1' in the bottom '120' number, are indicative examples.
The nearest I can determine, the cone numbers appear to be:
35146100
120