Looking back through the MMD Archives, I see that Bruce Grimes posted
a query in MMD 2009.06.28 about a Duo-Art pump paper tag that sounds
identical to mine, except the letters are different: VOVGOA.

> Inside many Duo-Art rotary pumps is a little piece of paper with
> "VOVGOA" printed on it.  It is glued to only one of the bellows.
> Does anyone know for sure what it means?

Since they are so similar (mine being "VOVTOR") I will assume this is
a code for something rather than an acronym, but what?  Bruce received
no replies to his query.

John Grant