Interesting sectioned item on UK eBay


#1

I found this while browsing eBay for inert items earlier. Can anyone identify it?

http://cgi.ebay.co.uk/INTERESTING-WW1-WW2-EXPLODED-MODEL-OF-SHELL-BOMB_W0QQitemZ270176639508QQihZ017QQcategoryZ64824QQssPageNameZWDVWQQrdZ1QQcmdZViewItem#ebayphotohosting

The seller suggests is is possibly a sectioned round for some sort of line-throwing gun.