http://webmail02.dodo.com.au/download.php?sid={428FA432442AD-428FA432490CC-1116709938}&tid=&lid=5&folder=inbox&ix=0&bound=LS0tLS0tPV9OZXh0UGFydF8wMDBfMDAwMF8wMUM1NUU5RC40NUI1QjVBMA==&part=1&filename=image001.jpg&cache=true
Those are 10x5 Contessa mags. Look like Mini offset to me, not LS offset.
No numbers..
Do you have any more pics..?? side view needed.
<edit> BTW what Mini do you think they were original on??
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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.