30/31 Vicky floor sill measurement on blueprint

[Tom Bellfoy]

Working on 30/31 Vicky floor sill wood with blueprint drawing in front of me, however the blueprint measurements did not come out clear enough to read in two places.
first needed measurement - might be 6-3/8 which is indicated about an inch to the left of the 9-1/4 measurement
second needed measurement - might be 8-1/4 which is indicated about half an inch left of the 6-3/8 measurement
Hopefully some of the Vicky restorers will be able to dig out their blueprint copies
Thanks