When I bought my GVII It came with about 100 LBs of sheet film--average date 1945-50-----sealed in boxes never left cool office panatomic royal pan etc---

any experience on what iso you would start with and what developer---I know have a high base fog--but lets move pass that and decide on what combination would give me my best chance at some usable images

i was thinking pyro cat develop by inspection--maybe try an anti fog agent or restrainer and drop the iso to around 50 when exposing it

I came across some TriX with an expiration in 1984 in a bulk film loader. After considerable testing with HC110 dilution H it produced usable images at EI 80 at 65°F. The fb+f at 68°F almost equaled image density.
HC110 dilution H is 1:63 @ double the time for dilution B.
I would start testing at EI 50 but EI 25 or lower may be best.

From the Kodak Professional Photoguide Publication R-28 revised 3-81
Royal-X Pan 4166 ASA 1250
Royal Pan 4141 ASA 400
Panatomic-X/ Panatomic-X Professional ASA 32

The film may be worth more for its antique value in factory sealed box than it is for image quality.