For Sale Original S M B Surface Signaling Device (1970’s Pat Applied For !) SCUBA TUBA $ 9 includes shipping

[DiverYohand]

Here’s the SMB (perfect condition) that started it…
And belongs in your collection!
1970’s seven (7) foot SCUBA TUBA with “detailed instructions “
Luckily never used, but upon inspection it certainly could be !
$10 includes shipping. Checks or Venmo only. Sorry no PayPal.
Text (414) 943-DIVE b4 you buy, as all sales are final.
Hope they got the patent…..

 

[DiverYohand]

$9 mailed !