From 1961-86 they were manufactured in Niles, Ill., and for one year from 1965-66 they manufactured their drums in a plant in Shelby, Tenn. Copies of original Slingerland ads that show the drums in their original condition and note the dates they were sold can easily be found and purchased online.
This is an accurate way to compare and date Slingerland drums.
The veneers were also reissued occasionally and can make dating a Slingerland drum difficult.
In most cases they also included a host of other band instruments and items related to the music business.
These catalogs although re-printed in some cases from year to year with limited changes do provide a timeline of when finishes were added and when hardware was used and or changed on drums.
Slingerland is a drum manufacturer originally based out of Chicago, Ill., that has produced quality drum sets and snare drums since 1928.
The drum brand was famously played by Buddy Rich, who's still considered one of the greatest drummers of all time.
Slingerland drum company manufactured drums at many different locations throughout the years.