There are 2 different 8oz ACL known so far, one that says the city where it was bottled (Grand'Mère, QC) and one that doesn't. There is also a 30oz size which has the same ACL.
I just found this thread and man I love watching bottle diving videos! Thanks for posting them and yes, I've also subscribed :-)
And I sent you a PM ;-)
I found this on the Quebec Medicine bottle site (in French but Google translate should be able to do the job ;-) ); first on the Scarff bottle itself:
http://bouteillesduquebec.ca/Pharmacie/scarff_phcy.htm
And an ad for this druggist:
http://bouteillesduquebec.ca/publicites/scarff_ce.htm
On...
Do you have your great great grandfather's last name? Back then here in Quebec, most bottlers used their last name as company names. And there were a few in Chambly.