https://www.valley-dynamoparts.com/docs/FoosFAQ-mk7.pdf"...Is there any way to tell how old my table is?
While split-cabinet coin and home tables are serialized, we lack a
comprehensive serial number record to work from. Lower-level models
have no serial number. This is a case where you really should check with
the experience of people on Internet Foosball Forums. Someone there
will know exactly how old their bought-new table is and you can work
from there.
In a way, this led to retiring the “Weather phenomena” names of the
tables (Storm, Cyclone, Whirlwind and Twister). Someone could have a
Storm that was 2 weeks old, 2 years old, or 2 decades old. ..."