Can anyone help me I.D. this shell casing?

[TheJonk]

I am looking for some information on a shell casing. Story goes a friend of my in-laws passed away, his widow has been cleaning out the house/garage and this came up. I have been helping her to sell some things but before we decide to sell this casing or not I would like to find some more information about it.


Stamping on the casing is as follows.


From about 10 o`clock to 2 o`clock : 4 in Mks XVI & XVI GUNS
II


Three o`clock : IC
S
EW (Circled with a line through it)


Six o`clock N
1939


Eight o`clock F (stamped beside this "F" is two circled "ca")


Nine o`clock LOT
153
1N (circled with a line stamped through)


The casing is 5 inches in diameter and approx. 21.5 inches tall.


Thanks in advance.

 

[highlandotter]

I found 4"/45 listed as British circa WW1 as secondary on battleships and in various roles on most ships of the era No info on other markings.

 

[Tony Williams]

The British 4"/45 naval AA gun was extensively used in WW2 in the Mk XIX twin mounting. It formed the secondary armament of cruisers and the primary armament of Hunt class destroyer escorts and various other smaller warships. One of the most common and successful of the Royal Navy's WW2 gun mountings (automatic cannon excepted).

See: http://www.navweaps.com/Weapons/WNBR_4-45_mk16.htm

 

[TheJonk]

Thank you highlandotter and Tony Williams. I checked out navweaps.com great info there. Thanks again!