What's this frame?
 

I picked this up from a roadside rubbish collection in my neighbourhood and, aside from the Sakae stem, Sugino crank and Diacompe brakes, has no frame identification. It's old, but still has 700C wheel sizing. It's even relatively light. I have turned it into a single-speed runaround (the derailleur is Suntour Seven) because I didn't need all the gears and the probably rebuild.
Anyone identify the frame?
Many thanks - Neil, Perth, Western Australia

PS: neat brake adjuster on the front calipers will centre the brake pads.
PSS: So much yellow paint (courtesy of the previous owner) has obliterated any frame numbers, though there appears to be a raised three-number ID on the underside of the crank.

interesting lugs. if i had to guess id say it looks 70s japanese to me- but im probably way off.

any pictures of how the wheel fits into the fork? if theres a lot of space that means it likely came with 27s originally (which will help narrow the age).

Yes, I was thinking Japanese. The front wheel is a perfect fit for the 700. As I say, the front (and rear) calipers are designed for 700 wheels and a 27-inch wheel is too tight. That makes the frame younger. Sakae (apparently) didn't make frames and the SR brand is unrelated to Sakae.

I think it looks older than the 70's, possibly by as much as 20 years(or more). Never seen the lugs before, or those dropouts..,,,,BD

I'm with Bikedued on this one, the bb oiler port, the dropouts and the pump peg suggest an older British frameset.

More photos would be helpful!

Interesting! Looks British, from the fifties or earlier. That fork may not be original though.

I suspect the components are much more modern than the frame. The oiler hole on the bottom bracket shell, fancy lugs, and wheel guide on the NDS dropout point to British 1950s frame, perhaps Stallard, but possibly Australian (Malvern?):

P T Stallard

I would send many more images of the frame junctions to that member, that looks promising to me. Ignore the components.

With those dropouts, I doubt it is much (if any) later than 1950.

The lugs are also totally unfamiliar to me, but from the little I've seen of old Australian frames I'd bet that's what this is. I don't think it's a Malvern Star, but something similar. The raised letters you mention on the bottom bracket shell are not a serial number, but rather part of the casting. The builder bought basic frame parts (lugs, dropouts, etc; probably all of English make) and filed them to this distinctive shape. My advice would be to show more photos to us and to the guys who collect old Australian bikes. Maybe post the pictures here:
http://www.bicycles.net.au/forums/viewforum.php?f=23

Whatever it is, it is a great find. Congratulations!

Check out another post here about a Claud Butler. It has the same dropouts anda bottom bracket with the lube fitting.

http://www.bikeforums.net/classic-vi...lp-dating.html

The Claud butler dropout are a lot longer, and I think that they only did one type like this (I might be wrong of course).

Great looking frame, nice colour and the lugs are really "eccentric", that's cool.