HENDERSON & MACFARLANE LTD.

The illustrations differ in saw size, tooth count and tooth direction. The 1966 Encyclopedia describes a reversal of the Circular Saw Line’s teeth in the later Henderson & Macfarlane flag; Rosanoski questions both the implication that these were separate origins and the evidence for a deliberate reversal. H527 follows the Encyclopedia, while H528 follows Flude’s shipping history, where the upper teeth curve towards the fly. Flude’s separate Henderson’s Mill cover shows a red saw with the upper teeth pointing the other way.

The Log depicts very small, almost indistinguishable teeth, apparently without curvature. Sea Breezes reverses their direction and omits the central hole. Rosanoski finds the available online ship paintings too small to settle the detail.

H769 is supported by a black-and-white starboard photograph of Emu about 1900, with the saw teeth curving forward.