Porter's Pain King Bottle

[foxfirerodandgun]

Does anyone have any idea as to the approximate time that the bottle closer style changed from the cork top to the screw top? Many thanks for any help that someone could share.

James

 

[nhpharm]

On the Porters, I think it was in the late 1920's.

 

[foxfirerodandgun]

On the Porters, I think it was in the late 1920's.

Thank you. My learning curve is beginning to grow.

James