Article here. High point:
"A gun manufacturer who specializes in legal reproductions of historic weaponry told WND a recent audit of the business found no discrepancies in his records, but it did reveal mistakes in the ATF records.
"What was of particular interest to me was that the NFRTR [BATFE's bound book of machineguns, etc] was off by four machineguns," Len Savage, of Historic Arms LLC, said.
"It is so bad [the BATFE own record keeping] that the inspectors have a form for correcting it using dealers records," he said. He submitted a Freedom of Information Act request and discovered that the federal agency "is very quietly trying to fix their own inept record keeping by using our [store and business] records to fill in the gaps."
An ATF inspector, Herbert Blount, told Savage that when the agency moved to a new building, officials "lost/misplaced" records for more than 500 businesses and replacements were being sought."
Hat tip to Red's Trading Post...