Contains handwritten and typed certificates submitted for approval for road, trunk line, and finished wood guard railing projects. Certificates generally contain information about the project, materials purchased and cost claimed. Later certificates contain a more complete itemized listing of materials purchased by the town, including a final quantity estimate, contract price and the amount spent. Certificates sometimes also contained detailed descriptions regarding the road's physical dimensions. Some files include blueprints, sketches, daily labor cost reports, materials receipts, estimates of project cost sharing between the towns and the state, and the Comptroller's voucher receipt.