How can you help? I need the drawings that accompanied British patents A.D. 1814, August 4, N° 3833, and A.D. 1816, May 14.—N° 4026. I’ve never

How can you help? I need the drawings that accompanied British patents A.D. 1814, August 4, N° 3833, and A.D. 1816, May 14.—N° 4026. I’ve never
