1 Inch Morris Aiming Tube

[rainer308]

I had the opportunity to get an item named "1 Inch Morris Aiming Tube Subcaliber Cartridge". The description says, that is is for a .23 Morris Cartridge.
Does somebody know more about this device and its use?

 

[sgdbdr]

The Morris Aiming Tube - History, usages, designs and patents

Historic Arms Resource Centre facility for British and Commonwealth Enfield and other Miniature calibre training and small-bore TARGET RIFLES (BSA- Birmingham Small Arms Co.), conversion units and accessories with representation of other nations' training rifles, plus Postal League competitions...

www.rifleman.org.uk