how did this happen?

[tomt]

same SERIAL NUMBER ?

THIS AUCTION IS FOR A PAIR OF JBL JAMES LANSING SOUND SPEAKERS. THEY ARE 15" , 32OHM D-130-B AND HAVE THE SAME, MATCHING SERIAL NUMBER OF 5004 EACH. BOTH SPEAKERS ARE VERY NICE CONDITION WITH ONE EXCEPTION. THERE IS A SMALL APROX 1/2" BREAK/TEAR/HOLE/SLIT IN ONE SPEAKER. I TRIED TO SHOW BUT ITS VERY HARD TO SEE , NOTICE. A SKILLED REPAIR TECH COULD EASILY BLEND THE FIBERS FOR A "UN=NOTICEABLE" REPAIR. THERE IS NO MATERIAL MISSING, ONLY A TEAR WITHIN THE FABRIC/FIBER MATERIAL. BOTH SPEAKERS ARE VERY NICE COSMETICALLY BOTH FRONT AND BACK, THANKS FOR LOOKING , 707HOTDEALS.

http://www.ebay.com/itm/Rare-JBL-Vin...42332503146130

[louped garouv]

i would bet that the person sitting behind the type-writer that day
got distracted for just a second and issued the same number twice...

[Eaulive]

It doesn't look like the same typewriter... maybe numbers repeat and year is different?

[louped garouv]

It doesn't look like the same typewriter...

good eyes!

i do believe you are correct...

[SEAWOLF97]

D 130B is written 2 different ways

2 typists ?

[farleybob]

Any chance that they were both made in April 1950 and it's basically a date code?

[Maron Horonzakz]

THOSE DUAL SERIAL NUMBERS WERE USED ON WOOFERS FOR THE JBL C55 SCOOP HORN ENCLOSER and it was common to give the same serial number..for that design..I have a pair like that..