If memory serves, I believe KCDrumDad was keeping excellent records for Ludwig serial numbers. I wanted to list another number to show how long a duration a shell could sit before having a badge affixed. Or how long it can take for an older serial numbered badge to finally get installed on a shell!
The following numbers and date stamps are from my 1970 Super Classic kit.
812168 5x14 Shell stamp: NOV 13 1970
823949 9x13 Shell stamp: NOV 9 1970
The next serial number and date stamp is from a 16x16 floor tom, which was at Heuer's Drum Lab in Burbank for some work.
819670 16x16 Shell stamp: APR 19, 1971
As you can see, the serial number is right in between those of my 2 drums, both dated NOV 1970, yet the serial number of 819670 has a shell date stamp of about 1.5 years later! To me, that could mean that the badge was way down at the bottom of the pile and the installer finally attached it in April of 1971. Does that sound about right?
Oh yeah, this 16x16 floor tom belongs to a client who owns the rest of the kit, which is either a Big Beat or Hollywood... and belonged to one of the Three Stooges! The new owner wanted to rewrap all the drums and recut the edges. Chris Heuer talked him out of doing this! Another vintage kit saved!
-Mark