What happened to the Williams Obsolescence chart

[HenryLemmon]

I got a few williams wall furnaces that I want to find the age of. I downloaded the FURNACE_AGE_CHART and it say's to check the

 

Williams Comfort Products: Always check the Williams obsolescence chart first (Downloadable from the TIJ library) to see whether parts are even available. 

 

Where is that chart they are talking about?

Thank you

[Jim Katen]

It might have been lost in the transformation from the old forum to this one. Lots of documents disappeared. 

Try https://www.building-center.org/williams-hvac-age/