Specifications for bituminous road-mix surface open-graded aggregate type, subclass C-2 (Bituminous retread-asphalt and tar) : effective May 15, 1939 ...

Cover-title.

Specifications for bituminous surface, open-graded aggregate type, subclass C-5 (Machine mix-emulsified asphalt) : effective July 1, 1945.

Reproduced from typewritten copy.

Specifications for tar concrete surface course, coarse open-graded aggregate type, subclass H-3, nonproprietary, cold-lay : effective August 1, 1945.

Reproduced from typewritten copy.

Specifications for bituminous surface, open-graded aggregate type, subclass C-4 (Machine mix-asphalt and tar) : effective May 15, 1939 ...

Cover-title.