These could be used, but i'm not certain.  It seems everything that was loose in the box with parts in the original paper sleeve or boxes had some issues with the original finish.  The box parts were for field telephone or radio that belong to the army.  I will be listing other tube covers.

These 2 measures

Top measures 0.60" or 15.2 mm

Height is 1.76" or 44.8 mm (includes flange)

Bottom opening is 0.77" or 19.8 mm (does not include flange)

Please message me if you have any questions, and thank you so much for looking at my radio Vacuum Tube covers, sleeves.