Hi,
Well I'm not much of a 1930s bike expert, so I'll leave the detailed id to someone better qualified, other than to say that with the oil in the sump (actually an oil tank cast as part of the crankcase, but separate from it) and hand gear change the BSA is from the early 1903s - 1933-4ish? Presumably a 500 ohv. The other bike looks like a Harley Davidson, and if they are twin headlights I see it is also early 1930s.
I'm more interested in the photos - taken in South Australia perhaps? Any idea exactly where? Is there a story? Very atmospheric!
Leon
Thanks for the at least partial ID, Leon.
Yes, all three photos were taken in South Australia. . .the centre one was definitely taken on the orchard I grew up on just outside Gumeracha in the Adelaide hills (if you know your SA geography
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The top and bottom photos were, I believe, taken on a camping trip to the Coorong. . .so it would be somewhere between Gumeracha and there. . .
The brothers did quite extensive camping trips on their bikes, apparently, covering most of South Australia. . .unfortunately, these are the only photos I have.