Unidentified Shells

[dodgydave]

A couple of shells i've been using as doorstops for many years! I thought it was time to find out what they are..
The yellow one came from a shed at a house that had laid untouched since 1947!! It's been shotblasted and painted. (The fuze was not with it; it's one I found that fitted; I was told the fuze is an 18 pdr, WW1 Canadian,1916 date and broad arrow in C)
The larger shell was being used as balast in the hull of a local boat; I would say that the corrosion around the base indicates that it's been in water for some time, fitted in its shellcase. Being solid shot, it weighs approx 25lbs(clue?)

 

[NexEroVolatilis]

the first looks like a 15 Pdr AP...

and an 18 Pdr HE for the yellow one

 

[2pounder]

ident

Calibre always helps identify shells even if well rusted, if the corroded one is slightly under 4in then it is probably a 4in Naval practice, British. 2pr

 

[dodgydave]

Oh yes! forgot the dimesions:tinysmile_angry2_t:. The larger rusty one is approx 3 1/2" (88mm) across and 10 3/4"(275mm) tall; the yellow one is 3"(72mm) across, 8 1/2" (210mm) tall,without fuze. The fuze hole is approx 2 5/8 (65mm) across.