[OM] auto vs manual extension tube question--item on yabe

[usher99]

Looking at item 7571208089---ostensibly an auto tube 14.   There is no "auto" 
on the side of the tube, though the seller says the enclosed instructions says 
its an auto variety--she is not really sure.  My auto tube 25 has "auto 25" on 
the side.  I wonder if auto tubes were made without being designated as such.  
Mike


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