RE:APT Price: Sept 15 - Oct 14 2021 This is as close as I can get you to answer you queestion, so you will have to sign up to view, as I will not.
It's flagged as safe by Norton on Google but comes up as not secure on the address bar, explore at your own risk, but safe to look at without a sign up.
It's a Chinese site. Sus to me.
https://www.asianmetal.com/price/initPriceListEn.am?pId=53&isProduct=true
This one is interesting and safe to view, but does not reach the dates you want.
Prices from 1900 to 2018 with adjustments for inflation.
Crazy numbers here.
https://www.metalary.com/tungsten-price/
Another one you might want to dig into that is secure, but needs a sign up as well..
https://www.argusmedia.com/metals-platform/price/assessment/tungsten-apt-fob-china-per-mtu-wo3-PA00145020000