It is a 3/4" wide oval type - their type number is HS61.
Henry Taylor / Hamlet Woodturning Chisels HCT Series
Vintage Henry Taylor Diamic Wood turning Skew Spindle Scraper
HENRY TAYLOR 1.25" Square End Woodturning Chisel - HS10 - New Old Stock
Henry Taylor Diamic woodturning chisel oval skew HS60
Henry Taylor Diamic Wood Turning Tool Set Of 5. Boxed And Used Once.
Taylor Seville Originals - Taylor Seville Originals Comfort Grip Heat Resistant Fine (0.5 x 36mm) Patchwork Magic Pins - 50 Pieces