Quarry of THE BEDFORD QUARRIES COMP

is the best in the market.

If you want the most economical and efficient bar use
our TWISTED LOCK BAR with its positive mechanical
bond which will insure you against serious cracks from
undistributed tension. ¶ Our TWISTED LOCK BAR
has no sharp angles to weaken the concrete. It cannot
untwist under stress and has no unnecessary weight in
projections. Our engineers are at your disposal for
designs and estimates using our TWISTED LOCK BAR.

LOCK BAR STEEL-CONCRETE COMPANY

W. W. RAMSEY, Mgr.

1130 COMMERCIAL NATIONAL BANK BUILDING

TELEPHONE RANDOLPH 745

CHICAGO